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That is 1/5 of what the jug can hold. How many ml can the jug hold when it is completely full?","spoken_prompt":"A jug contains 40 millilitres of juice. That is one fifth of what the jug can hold. How many millilitres can the jug hold when it is completely full?"},"source":"ai_draft","status":"approved","phase_id":"fdp_non_unit_fractions_and_equivalence","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"numeric","accepted_values":[200]},"hint_ladder":[{"step":1,"message":"The 40 ml is just one fifth of the jug. A full jug is 5 fifths â 5 of these same-sized portions stacked up."},{"step":2,"message":"You already know one fifth is 40 ml, so there is nothing to divide. Picture filling the jug one fifth at a time â 40 ml, then another 40 ml, and keep going until all 5 fifths are in. 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How long is the whole rope?","spoken_prompt":"One fifth of a rope is 6 m long. How long is the whole rope?"},"source":"ai_draft","status":"approved","phase_id":"fdp_non_unit_fractions_and_equivalence","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"numeric","accepted_values":[30]},"hint_ladder":[{"step":1,"message":"One fifth of the rope is 6 m. The whole rope is made of 5 equal fifths like this one."},{"step":2,"message":"Each fifth is 6 m, and the whole is 5 fifths, so add 6 m five times (or times 6 by 5).","focus_misconception_tags":["fraction_of_amount_divides_wrong"]}],"purpose_tag":"stretch","suitability":{"review":true,"stretch":true,"support":false,"teaching":true,"diagnostic":false,"mastery_evidence":true},"form_variant":"standard","micro_skill_id":"FDP.P3.M03","representation":"t
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Or are they the same?"},"source":"ai_draft","status":"approved","phase_id":"fdp_non_unit_fractions_and_equivalence","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"select","options":[{"id":"opt_same","label":"They are the same"},{"id":"opt_third12","label":"1/3 of 12","misconception_tags":["compares_fractions_by_numerator_only"]},{"id":"opt_quarter16","label":"1/4 of 16","misconception_tags":["fraction_of_amount_divides_wrong"]}],"selection_mode":"single","correct_option_ids":["opt_same"]},"hint_ladder":[{"step":1,"message":"You can't tell from the fractions alone â work out each amount, then compare the two amounts."},{"step":2,"message":"For 1/3 of 12, share 12 into 3 equal groups; for 1/4 of 16, share 16 into 4 equal groups. 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1:false,"isQuantityCompare":true,"exactHalfDisguised":false,"isUnitFractionPair":false,"bothDenomsUnfamiliar":false}},"typical_year_band_id":"year_3","task_complexity_score":3.1},{"id":"FDP.P3.M03.Q212","prompt":{"stem":"Which is more: 2/5 of 20 or 3/4 of 8?","spoken_prompt":"Which is more: two fifths of 20, or three quarters of 8?"},"source":"ai_draft","status":"approved","phase_id":"fdp_non_unit_fractions_and_equivalence","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"select","options":[{"id":"opt_two_fifths_20","label":"2/5 of 20"},{"id":"opt_three_quarters_8","label":"3/4 of 8","misconception_tags":["compares_fractions_by_numerator_only"]},{"id":"opt_same","label":"They are the same","misconception_tags":["fraction_of_amount_divides_wrong"]}],"selection_mode":"single","correct_option_ids":["opt_two_fifths_20"]},"hint_ladder":[{"step":1,"message":"A bigger top number doesn't always mean a bigger amount â work out each one and compare the results."},{"step":2,"message":"Work out each amount in turn: find the size of one part, then take the number of parts needed. 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Is she right?","spoken_prompt":"Freya says three quarters of 20 is 16. 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What is her mistake?","spoken_prompt":"Maya writes five tenths equals nought point nought five. 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It is marked in tenths. The water reaches 0.4 litres. How many tenths of a litre is that?","spoken_prompt":"A jug holds one litre. It is marked in tenths. The water reaches nought point four litres. 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Now shaded = 7/10 = 0.7 (key correct_7); unshaded = 3/10 = 0.3, so the counts_shaded_not_unshaded distractor 'opt_unshaded' is genuinely false. Decimal-place distractors rebuilt to 0.07 and 7.0. Bar has 10 equal parts, 7 shaded: 7 ÷ 10 = 0.7. Stem/spoken carry no numbers so unchanged; hints do not reference a count, left as is."],"prompt":{"stem":"The bar has 10 equal parts. Which fraction and decimal both match the shaded amount?","spoken_prompt":"The bar has ten equal parts. 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1s and 0.5 s. Which time is the fastest?","spoken_prompt":"In a computer reaction game, three players get times of nought point six seconds, nought point zero six seconds and nought point five seconds. Which time is the fastest?"},"source":"ai_draft","status":"approved","phase_id":"fdp_tenths_hundredths_and_decimal_links","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"select","options":[{"id":"correct_0_06","label":"0.06 s"},{"id":"opt_0_5","label":"0.5 s","misconception_tags":["decimal_as_whole_number"]},{"id":"opt_0_6","label":"0.6 s","misconception_tags":["decimal_as_whole_number"]}],"selection_mode":"single","correct_option_ids":["correct_0_06"]},"hint_ladder":[{"step":1,"message":"The fastest time is the smallest number. A zero in the tenths means there are no tenths. Compare the tenths column.","focus_misconception_tags":["decimal_as_whole_number"]},{"step":2,"message":"The fastest is the smallest time. Whichever has the fewest tenths is smallest, and a placeholder in the tenths place means none at all. Compare the tenths digits.","focus_misconception_tags":["decimal_as_whole_number"]}],"purpose_tag":"stretch","suitability":{"review":true,"stretch":true,"support":false,"teaching":true,"diagnostic":true,"mastery_evidence":true},"form_variant":"single_select","micro_skill_id":"FDP.P4.M04","representation":"multiple_choice","scaffold_level":"none","complexity_band":2,"difficulty_rank":5,"difficulty_tier":"stretch","question_family":"concept_core","interaction_type":"single_select","mathematical_form":"comparison_statement","misconception_tags":["decimal_as_whole_number"],"difficulty_features":{"form":"comparison_statement","strand":"fractions_decimals_percentages","universal":{"numbers":[0,6,0,6,0,5],"has_visual":false,"representation":"multiple_choice","scaffold_level":"none","unknown_position":"none","presentation_style":"other"},"form_specific":{"minGap":0.09999999999999998,"values":[0.6,0.06,0.5],"allInts":false,"inContext":false,"isOrdering":false,"sameTenths":false,"mixedLength":true,"equalDiffPrint":false,"equalSamePrint":false,"producesSymbol":false}},"typical_year_band_id":"year_4","task_complexity_score":2.2,"unscaffolded_eligible":true},{"id":"FDP.P4.M04.Q219","prompt":{"stem":"Order these decimals from smallest to largest.","spoken_prompt":"Put these decimals in order, smallest to largest: 0.4, 0.35, 0.5."},"source":"ai_draft","status":"approved","phase_id":"fdp_tenths_hundredths_and_decimal_links","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"exact","accepted_values":["0.35,0.4,0.5"]},"hint_ladder":[{"step":1,"message":"More digits does not mean larger. Compare the tenths of each decimal first.","focus_misconception_tags":["decimal_as_whole_number"]},{"step":2,"message":"Read the tenths of each one: 0.4 has 4, 0.35 has 3, 0.5 has 5. Fewer tenths means a smaller decimal.","focus_misconception_tags":["decimal_as_whole_number"]}],"purpose_tag":"core","suitability":{"review":true,"stretch":false,"support":false,"teaching":true,"diagnostic":true,"mastery_evidence":true},"visual_data":{"type":"drag_order","numbers":[0.4,0.35,0.5],"direction":"asc"},"form_variant":"standard","micro_skill_id":"FDP.P4.M04","representation":"interactive","scaffold_level":"light","complexity_band":2,"difficulty_rank":3,"difficulty_tier":"core","question_family":"concept_core","interaction_type":"tap_select","mathematical_form":"comparison_statement","misconception_tags":["decimal_as_whole_number"],"difficulty_features":{"form":"comparison_statement","strand":"fractions_decimals_percentages","universal":{"numbers":[0.4,0.35,0.5],"has_visual":true,"representation":"interactive","scaffold_level":"light","unknown_position":"none","presentation_style":"other"},"form_specific":{"minGap":0.050000000000000044,"values":[0.4,0.35,0.5],"allInts":false,"inContext":false,"isOrdering":true,"sameTenths":false,"mixedLength":true,"equalDiffPrint":false,"equalSamePrint":false,"producesSymbol":false}},"typical_year_band_id":"year_4","task_complexity_score":2.3,"unscaffolded_eligible":true},{"id":"FDP.P4.M04.Q220","prompt":{"stem":"Order these decimals from smallest to largest.","spoken_prompt":"Put these decimals in order, smallest to largest: 0.6, 0.45, 0.7, 0.5."},"source":"ai_draft","status":"approved","phase_id":"fdp_tenths_hundredths_and_decimal_links","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"exact","accepted_values":["0.45,0.5,0.6,0.7"]},"hint_ladder":[{"step":1,"message":"0.45 looks longest but may
1not be largest. Compare the tenths first.","focus_misconception_tags":["decimal_as_whole_number"]},{"step":2,"message":"Read the tenths of each one: 0.6 has 6, 0.45 has 4, 0.7 has 7, 0.5 has 5. Fewer tenths means a smaller decimal.","focus_misconception_tags":["decimal_as_whole_number"]}],"purpose_tag":"core","suitability":{"review":true,"stretch":false,"support":false,"teaching":true,"diagnostic":true,"mastery_evidence":true},"visual_data":{"type":"drag_order","numbers":[0.6,0.45,0.7,0.5],"direction":"asc"},"form_variant":"standard","micro_skill_id":"FDP.P4.M04","representation":"interactive","scaffold_level":"light","complexity_band":2,"difficulty_rank":4,"difficulty_tier":"core","question_family":"concept_core","interaction_type":"tap_select","mathematical_form":"comparison_statement","misconception_tags":["decimal_as_whole_number"],"difficulty_features":{"form":"comparison_statement","strand":"fractions_decimals_percentages","universal":{"numbers":[0.6,0.45,0.7,0.5],"has_visual":true,"representation":"interactive","scaffold_level":"light","unknown_position":"none","presentation_style":"other"},"form_specific":{"minGap":0.04999999999999999,"values":[0.6,0.45,0.7,0.5],"allInts":false,"inContext":false,"isOrdering":true,"sameTenths":false,"mixedLength":true,"equalDiffPrint":false,"equalSamePrint":false,"producesSymbol":false}},"typical_year_band_id":"year_4","task_complexity_score":2.45,"unscaffolded_eligible":true},{"id":"FDP.P4.M04.Q221","prompt":{"stem":"Order these decimals from largest to smallest.","spoken_prompt":"Put these decimals in order, largest to smallest: 0.9, 0.18, 0.81."},"source":"ai_draft","status":"approved","phase_id":"fdp_tenths_hundredths_and_decimal_links","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"exact","accepted_values":["0.9,0.81,0.18"]},"hint_ladder":[{"step":1,"message":"This time start with the largest. Compare the tenths first, not the digit count.","focus_misconception_tags":["decimal_as_whole_number"]},{"step":2,"message":"Read the tenths of each one: 0.9 has 9, 0.18 has 1, 0.81 has 8. More tenths means a larger decimal.","focus_misconception_tags":["decimal_as_whole_number"]}],"purpose_tag":"stretch","suitability":{"review":true,"stretch":true,"support":false,"teaching":true,"diagnostic":true,"mastery_evidence":true},"visual_data":{"type":"drag_order","numbers":[0.9,0.18,0.81],"direction":"desc"},"form_variant":"standard","micro_skill_id":"FDP.P4.M04","representation":"interactive","scaffold_level":"none","complexity_band":3,"difficulty_rank":5,"difficulty_tier":"stretch","question_family":"concept_core","interaction_type":"tap_select","mathematical_form":"comparison_statement","misconception_tags":["decimal_as_whole_number"],"difficulty_features":{"form":"comparison_statement","strand":"fractions_decimals_percentages","universal":{"numbers":[0.9,0.18,0.81],"has_visual":true,"representation":"interactive","scaffold_level":"none","unknown_position":"none","presentation_style":"other"},"form_specific":{"minGap":0.08999999999999997,"values":[0.9,0.18,0.81],"allInts":false,"inContext":false,"isOrdering":true,"sameTenths":false,"mixedLength":true,"equalDiffPrint":false,"equalSamePrint":false,"producesSymbol":false}},"typical_year_band_id":"year_4","task_complexity_score":2.5,"unscaffolded_eligible":true},{"id":"FDP.P4.M04.Q222","prompt":{"stem":"Order these decimals from smallest to largest.","spoken_prompt":"Put these decimals in order, smallest to largest: 0.3, 0.29, 0.4."},"source":"ai_draft","status":"approved","phase_id":"fdp_tenths_hundredths_and_decimal_links","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"exact","accepted_values":["0.29,0.3,0.4"]},"hint_ladder":[{"step":1,"message":"A longer decimal is not always larger or smaller. Compare the tenths first.","focus_misconception_tags":["decimal_as_whole_number"]},{"step":2,"message":"Read the tenths of each one: 0.3 has 3, 0.29 has 2, 0.4 has 4. 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1,"hint_ladder":[{"step":1,"message":"The wholes all match, so compare the tenths of a metre, not the digit count.","focus_misconception_tags":["decimal_as_whole_number"]},{"step":2,"message":"Each jump is 2 whole metres. Read the tenths: 2.3 has 3, 2.25 has 2, 2.4 has 4. 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The extra zero adds nothing, so think about what that means for their size.","focus_misconception_tags":["decimal_as_whole_number"]}],"purpose_tag":"core","suitability":{"review":true,"stretch":false,"support":false,"teaching":true,"diagnostic":true,"mastery_evidence":true},"form_variant":"single_select","micro_skill_id":"FDP.P4.M04","representation":"multiple_choice","scaffold_level":"guided","complexity_band":3,"difficulty_rank":2,"difficulty_tier":"core","question_family":"concept_core","interaction_type":"single_select","mathematical_form":"comparison_statement","misconception_tags":["decimal_as_whole_number"],"difficulty_features":{"form":"comparison_statement","strand":"fractions_decimals_percentages","universal":{"numbers":[0,3,0,30],"has_visual":false,"representation":"multiple_choice","scaffold_level":"guided","unknown_position":"middle","presentation_style":"choice"},"form_specific":{"minGap":0,"values":[0.3,0.3],"allInts":false,"inContext":false,"isOrdering":false,"sameTenths":false,"mixedLength":true,"equalDiffPrint":true,"equalSamePrint":false,"producesSymbol":true}},"typical_year_band_id":"year_4","task_complexity_score":2.7,"unscaffolded_eligible":false},{"id":"FDP.P4.M04.Q225","prompt":{"stem":"Which symbol makes this true: 0.50 __ 0.5?","spoken_prompt":"Which symbol makes this true: nought point five zero, box, nought point five? 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The hundredths digit is zero, so think about what that means for their size.","focus_misconception_tags":["decimal_as_whole_number"]}],"purpose_tag":"core","suitability":{"review":true,"stretch":false,"support":false,"teaching":true,"diagnostic":true,"mastery_evidence":true},"form_variant":"single_select","micro_skill_id":"FDP.P4.M04","representation":"multiple_choice","scaffold_level":"guided","complexity_band":3,"difficulty_rank":3,"difficulty_tier":"core","question_family":"concept_core","interaction_type":"single_select","mathematical_form":"comparison_statement","misconception_tags":["decimal_as_whole_number"],"difficulty_features":{"form":"comparison_statement","strand":"fractions_decimals_percentages","universal":{"numbers":[0,50,0,5],"has_visual":false,"representation":"multiple_choice","scaffold_level":"guided","unknown_position":"middle","presentation_style":"choice"},"form_specific":{"minGap":0,"values":[0.5,0.5],"allInts":false,"inContext":false,"isOrdering":false,"sameTenths":false,"mixedLength":true,"equalDiffPrint":true,"equalSamePrint":false,"producesSymbol":true}},"typical_year_band_id":"year_4","task_complexity_score":2.7,"unscaffolded_eligible":false},{"id":"FDP.P4.M04.Q226","prompt":{"stem":"Mark says 0.7 is bigger than 0.70 because it has fewer digits. Is Mark right?","spoken_prompt":"Mark says nought point seven is bigger than nought point seven zero because it has fewer digits. Is Mark right?"},"source":"ai_draft","status":"approved","phase_id":"fdp_tenths_hundredths_and_decimal_links","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"select","options":[{"id":"correct_no_equal","label":"No, they are equal"},{"id":"opt_yes_fewer","label":"Yes, 0.7 is bigger","misconception_tags":["decimal_as_whole_number"]},{"id":"opt_no_70_bigger","label":"No, 0.70 is bigger","misconception_tags":["decimal_as_whole_number"]}],"selection_mode":"single","correct_option_ids":["correct_no_equal"]},"hint_ladder":[{"step":1,"message":"The number of digits does not set the size. A zero on the end adds no value. Compare the tenths.","focus_misconception_tags":["decimal_as_whole_number"]},{"step":2,"message":"0.7 is 7 tenths; 0.70 is 7 tenths and 0 hundredths. 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Times, options and answer unchanged: Priya (0.55 < 0.60)."],"prompt":{"stem":"In a reaction game, Sam's time is 0.6 seconds. Priya's time is 0.55 seconds. Who w
1as faster (had the shorter time)?","spoken_prompt":"In a reaction game, Sam's time is nought point six seconds. Priya's time is nought point five five seconds. Who was faster, with the shorter time?"},"source":"ai_draft","status":"approved","phase_id":"fdp_tenths_hundredths_and_decimal_links","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"select","options":[{"id":"opt_sam","label":"Sam","misconception_tags":["decimal_as_whole_number"]},{"id":"opt_priya","label":"Priya"}],"selection_mode":"single","correct_option_ids":["opt_priya"]},"hint_ladder":[{"step":1,"message":"Line up the decimal points and compare the tenths digit first, before looking at any other digits."},{"step":2,"message":"0.6 can be written as 0.60. 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Is she right?","spoken_prompt":"Zara says nought point four five is bigger than nought point five, because 45 is bigger than 5. Is she right?"},"source":"ai_draft","status":"approved","phase_id":"fdp_tenths_hundredths_and_decimal_links","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"select","options":[{"id":"opt_yes","label":"Yes, she's right","misconception_tags":["decimal_as_whole_number"]},{"id":"opt_no","label":"No, she's wrong"}],"selection_mode":"single","correct_option_ids":["opt_no"]},"hint_ladder":[{"step":1,"message":"The digits after the point don't join together as one whole number â each column (tenths, hundredths) has its own place value."},{"step":2,"message":"Compare the tenths digit of each number first: what is the tenths digit in 0.45, and what is the tenths digit in 0.5?","focus_misconception_tags":["decimal_as_whole_number"]}],"purpose_tag":"core","suitability":{"review":true,"stretch":false,"support":false,"teaching":true,"diagnostic":true,"mastery_evidence":false},"micro_skill_id":"FDP.P4.M04","representation":"multiple_choice","scaffold_level":"guided","complexity_band":2,"difficulty_rank":4,"difficulty_tier":"core","question_family":"concept_transfer","interaction_type":"single_select","mathematical_form":"misconception_contrast_probe","misconception_tags":["decimal_as_whole_number"],"difficulty_features":{"form":"misconception_contrast_probe","strand":"fractions_decimals_percentages","universal":{"numbers":[0,45,0,5,45,5],"has_visual":false,"representation":"multiple_choice","scaffold_level":"guided","unknown_position":"none","presentation_style":"other"},"form_specific":{}},"typical_year_band_id":"year_4","task_complexity_score":1.7},{"id":"FDP.P4.M04.Q303","prompt":{"stem":"Order these volumes (litres) from smallest to largest.","spoken_prompt":"Three jugs hold nought point six litres, nought point four five litres, and nought point five litres of water. 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1,{"id":"FDP.P6.M01.Q128","prompt":{"stem":"Add 9/12 + 8/12 and write the total as a mixed number.","spoken_prompt":"Add nine twelfths and eight twelfths, then write the total as a mixed number."},"source":"ai_draft","status":"approved","phase_id":"fdp_fraction_decimal_percentage_reasoning","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"select","options":[{"id":"a","label":"1 5/12"},{"id":"b","label":"1 3/12"},{"id":"c","label":"17/12"},{"id":"d","label":"2 5/12"}],"selection_mode":"single","correct_option_ids":["a"]},"hint_ladder":[{"step":1,"message":"First add the numerators over the same denominator to get an improper fraction in twelfths.","focus_misconception_tags":["adds_fractions_by_adding_both"]},{"step":2,"message":"How many whole groups of 12 twelfths fit into that total? 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How much does she pay in total?","spoken_prompt":"Kasia buys a 60 pound game with 25 per cent off, then pays 3 pounds for delivery. How much does she pay in total?"},"source":"y6_build_2026_07","status":"approved","phase_id":"fdp_fraction_decimal_percentage_reasoning","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"numeric","accepted_values":[48]},"hint_ladder":[{"step":1,"message":"Two steps: take the discount off first, then add the delivery charge."},{"step":2,"message":"Find 25% of 60 by dividing by 4 â that is the discount to subtract."},{"step":3,"message":"Take a quarter of 60 off the price, then add the £3 delivery."}],"purpose_tag":"stretch","suitability":{"review":true,"stretch":true,"support":false,"teaching":true,"diagnostic":false,"mastery_evidence":true},"form_variant":"standard","micro_skill_id":"FDP.P6.M04","representation":"worded_prompt","scaffold_level":"none","complexity_band":3,"difficulty_rank":5,"difficulty_tier":"stretch","question_family":"reasoning","interaction_type":"typed_numeric","mathematical_form":"context_calculation","misconception_tags":["percentage_not_linked_to_fraction"],"difficulty_features":{"form":"context_calculation","strand":"fractions_decimals_percentages","universal":{"numbers":[60,25,3],"has_visual":false,"representation":"worded_prompt","scaffold_level":"none","unknown_position":"none","presentation_style":"other"},"form_specific":{"pct":25,"base":60,"easy":true,"nice":false,"sale":true,"charge":false,"awkward":false,"compare":false,"fdpKind":"percent","multiStep":true}},"typical_year_band_id":"year_6","task_complexity_score":2.85},{"id":"FDP.P6.M04.Q127","prompt":{"stem":"A tablet costs £120 and has 35% off. What is the sale price?","spoken_prompt":"A tablet costs 120 pounds and has 35 per cent off. What is the sale price?"},"source":"y6_build_2026_07","status":"approved","phase_id":"fdp_fraction_decimal_percentage_reasoning","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"numeric","accepted_values":[78]},"hint_ladder":[{"step":1,"message":"Find the discount first, then subtract it from the full price."},{"step":2,"message":"10% of 120 is 12, so 35% is three lots plus a half-lot."},{"step":3,"message":"Work out 35% of 120, then take it off 120 for the sale price."}],"purpose_tag":"stretch","suitability":{"review":true,"stretch":true,"support":false,"teaching":true,"diagnostic":false,"mastery_evidence":true},"form_variant":"standard","micro_skill_id":"FDP.P6.M04","representation":"worded_prompt","scaffold_level":"none","complexity_band":3,"difficulty_rank":5,"difficulty_tier":"stretch","question_family":"reasoning","interaction_type":"typed_numeric","mathematical_form":"context_calculation","misconception_tags":["percentage_not_linked_to_fraction"],"difficulty_features":{"form":"context_calculation","strand":"fractions_decimals_percentages","universal":{"numbers":[120,35],"has_visual":false,"representation":"worded_prompt","scaffold_level":"none","unknown_position":"none","presentation_style":"other"},"form_specific":{"pct":35,"base":120,"easy":false,"nice":false,"sale":true,"charge":false,"awkward":true,"compare":false,"fdpKind":"percent","multiStep":false}},"typical_year_band_id":"year_6","task_complexity_score":2.8},{"id":"FDP.P6.M04.Q128","prompt":{"stem":"Which is more: 40% of 60 or 30% of 90?","spoken_prompt":"Which is more: 40 per cent of 60, or 30 per cent of 90?"},"source":"y6_build_2026_07","status":"approved","phase_id":"fdp_fraction_decimal_percentage_reasoning","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"select","options":[{"id":"a","label":"40% of 60","misconception_tags":["percentage_not_linked_to_fraction"]},{"id":"b","label":"30% of 90","misconception_tags":[]},{"id":"c","label":"They are the same","misconception_tags":["percentage_not_linked_to_fraction"]}],"selection_mode":"single","correct_option_ids":["b"]},"hint_ladder":[{"step":1,"message":"Work out each amount separately, then compare the two results."},{"step":2,"message":"10% of 60 is 6, so scale to 40%. 10% of 90 is 9, so scale to 30%."},{"step":3,"message":"Take four lots of 6, then three lots of 9, and see which total is larger."}],"purpose_tag":"stretch","suitability":{"review":true,"stretch":true,"support":false,"teaching":true,"diagnostic":false,"mastery_evidence":true},"form_variant":"standard","micro_skill_id":"FDP.P6.M04","representation":"multiple_choice","scaffold_level":"none","complexity_band":3,"difficulty_rank":5,"difficulty_tier":"stretch","question_family":"reasoning","interaction_type":"single_select","mathematical_form":"comparison_statement","misconception_tags":["percentage_not_linked_to_fraction"],"difficulty_features":{"form":"comparison_statement","strand":"fractions_decimals_percentages","universal":{"numbers":[40,60,30,90],"has_visual":false,"representation":"multiple_choice","scaffold_level":"none","unknown_position":"none","presentation_style":"choice"},"form_specific":{"pct":40,"base":90,"easy":false,"nice":false,"sale":false,"charge":false,"awkward":false,"compare":true,"fdpKind":"percent","multiStep":false}},"typical_year_band_id":"year_6","task_complexity_score":2.55},{"id":"FDP.P6.M04.Q129","prompt":{"stem":"A £80 coat's price r
1ises by 25%, then falls by 20% of the new price. What is the final price?","spoken_prompt":"A coat costs 80 pounds. Its price rises by 25 per cent, then falls by 20 per cent of the new price. What is the final price?"},"source":"y6_build_2026_07","status":"approved","phase_id":"fdp_fraction_decimal_percentage_reasoning","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"numeric","accepted_values":[80]},"hint_ladder":[{"step":1,"message":"Do it in order: increase first, then reduce the new, larger price."},{"step":2,"message":"Increase the price by a quarter to get the new price, then find a fifth of that new price to remove."},{"step":3,"message":"Add a quarter of the price on, then take a fifth of the new total away."}],"purpose_tag":"stretch","suitability":{"review":true,"stretch":true,"support":false,"teaching":true,"diagnostic":false,"mastery_evidence":true},"form_variant":"standard","micro_skill_id":"FDP.P6.M04","representation":"worded_prompt","scaffold_level":"none","complexity_band":3,"difficulty_rank":5,"difficulty_tier":"stretch","question_family":"reasoning","interaction_type":"typed_numeric","mathematical_form":"context_calculation","misconception_tags":["percentage_not_linked_to_fraction"],"difficulty_features":{"form":"context_calculation","strand":"fractions_decimals_percentages","universal":{"numbers":[80,25,20],"has_visual":false,"representation":"worded_prompt","scaffold_level":"none","unknown_position":"none","presentation_style":"other"},"form_specific":{"pct":25,"base":80,"easy":true,"nice":false,"sale":false,"charge":false,"awkward":false,"compare":false,"fdpKind":"percent","multiStep":true}},"typical_year_band_id":"year_6","task_complexity_score":2.55},{"id":"FDP.P6.M04.Q301","prompt":{"stem":"Leo's tablet battery is at 40% of its full charge of 3000 mAh. How many mAh is left?","spoken_prompt":"Leo's tablet battery is at 40 per cent of its full charge of 3000 milliamp hours. How many milliamp hours are left?"},"source":"y6_build_2026_07","status":"approved","phase_id":"fdp_fraction_decimal_percentage_reasoning","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"numeric","accepted_values":[1200]},"hint_ladder":[{"step":1,"message":"40% means 40 out of every 100. 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1am. How many does Sam get?","spoken_prompt":"Noah has 40 marbles. He gives two fifths to Mia, then one quarter of what is left to Sam. How many does Sam get?"},"source":"y6_build_2026_07","status":"approved","phase_id":"fdp_fraction_decimal_percentage_reasoning","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"numeric","accepted_values":[6]},"hint_ladder":[{"step":1,"message":"Work in order: first find Mia's share, then a quarter of what remains."},{"step":2,"message":"2/5 of 40 goes to Mia. 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How many kilometres is that?"},"source":"y6_build_2026_07","status":"approved","phase_id":"fdp_fraction_decimal_percentage_reasoning","strand_id":"fractions_decimals_percentages","answer_spec":{"kind":"free_response","match_mode":"numeric","accepted_values":[20]},"hint_ladder":[{"step":1,"message":"Find one eighth of 32 by dividing by 8."},{"step":2,"message":"32 divided by 8 gives one eighth; then take five eighths."},{"step":3,"message":"One eighth of 32 is 4; take five of those eighths."}],"purpose_tag":"core","suitability":{"review":true,"stretch":false,"support":false,"teaching":true,"diagnostic":false,"mastery_evidence":true},"form_variant":"varied","micro_skill_id":"FDP.P6.M05","representation":"worded_prompt","scaffold_level":"none","complexity_band":3,"difficulty_rank":3,"difficulty_tier":"core","question_family":"concept_transfer","interaction_type":"typed_numeric","mathematical_form":"context_calculation","misconception_tags":["fraction_of_amount_divides_wrong"],"difficulty_features":{"form":"context_calculation","strand":"fractions_decimals_percentages","universal":{"numbers":[5,8,32],"has_visual":false,"representation":"worded_prompt","scaffold_level":"none","unknown_position":"none","presentation_style":"other"},"form_specific":{"fr":{"d":8,"n":5},"compare":false,"context":true,"fdpKind":"fracof","reverse":false,"multiStep":false}},"typical_year_band_id":"year_5","task_complexity_score":2.55},{"id":"FDP.P6.M05.Q304","prompt":{"stem":"Two thirds of the 45 seats on a bus are full. 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as authored_questions,n as default,t as metadata,o as micro_skill_question_map,e as schema_version,a as strand_id,i as template_generators};
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.