ctly identifies the change as £0.10 or 10p.","code":"A"}],"finalAnswers":["0.10"],"generatedAt":"2026-05-06T15:37:10.315Z","modelVersion":"gemini-3-flash-preview"},"tableImages":[],"explanation":{"methods":[{"id":"divide_then_subtract","label":"Divide, cost, then change","steps":[{"type":"text","order":0,"title":"Convert to pence","content":"Work in pence so there are no decimals. Since £$1=100$p, £$5=500$p and each bar costs $35$p.","highlights":[{"text":"She has £5 to spend on chocolate bars.","location":"specification"},{"text":"Each chocolate bar costs £0.35","location":"specification"}]},{"type":"hyper_latex","block":{"nodes":[{"latex":"$$500\\div 35=\\htmlData{anchor=quotient}{\\color{@sky}{14\\text{ remainder }10}}$"},{"latex":"$$\\htmlData{anchor=bars}{\\color{@sky}{n=14\\text{ bars}}}$"}],"highlights":[{"color":"sky","style":"text-color-with-background","anchor":"quotient"},{"color":"sky","style":"text-color","anchor":"bars"}],"connections":[{"to":"bars","from":"quotient","color":"sky","label":"take the quotient"}]},"order":1,"title":"Find the maximum","description":"Divide the money available by the price of one bar. The whole-number quotient is the number Ava can buy; writing this division earns the first M1 mark."},{"type":"text","order":2,"title":"Check the remainder","content":"Ava can buy $14$ bars, with $10$p left. The remainder is less than the $35$p needed for another bar, so $14$ really is the greatest possible number.","highlights":[{"text":"as many chocolate bars as she can","location":"specification"}]},{"type":"hyper_latex","block":{"nodes":[{"latex":"$$\\htmlData{anchor=costcalc}{\\color{@orange}{C=14\\times £0.35}}$"},{"latex":"$$\\htmlData{anchor=totalcost}{\\color{@orange}{C=£4.90}}$"}],"highlights":[{"color":"orange","style":"text-color","anchor":"costcalc"},{"color":"orange","style":"text-color-with-background","anchor":"totalcost"}],"connections":[{"to":"totalcost","from":"costcalc","color":"orange","label":"multiply"}]},"order":3,"title":"Calculate the cost","description":"Multiply the number of bars by the cost of each bar. This correct calculation earns the second M1 mark."},{"type":"hyper_latex","block":{"nodes":[{"latex":"$$\\htmlData{anchor=changesub}{\\color{@green}{\\text{change}=£5.00-£4.90}}$"},{"latex":"$$\\htmlData{anchor=changeanswer}{\\color{@green}{\\text{change}=£0.10}}$"}],"highlights":[{"color":"green","style":"text-color","anchor":"changesub"},{"color":"green","style":"text-color-with-background","anchor":"changeanswer"}],"connections":[{"to":"changeanswer","from":"changesub","color":"green","label":"subtract"}]},"order":4,"title":"Subtract the cost","description":"Change is the amount paid minus the total cost. The correct final change earns the A1 mark."}]}],"generatedAt":"2026-07-20T16:30:43.026Z","modelVersion":"gpt-5.6-sol","explanationVersion":"v3"},"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":{"percent":50},"walkthroughVideo":null},{"id":"015177c6-180c-482a-84d2-7351d975b856","revisionId":"6e13b3a6-17be-44dd-96ee-ebb0ec2174aa","questionNumber":"4","questionType":"LA","specification":"Mr Blair buys 30 pens, 30 rulers, 30 pencils and 30 calculators.\n\n### Price List\n\n| Item | Price |\n| :--- | :--- |\n| Pens | 5 for 85p |\n| Rulers | 10 for £2.64 |\n| Pencils | 6 for 52p |\n| Calculators | £6.25 each |","difficulty":2,"difficultyBand":"medium","totalMarks":5,"sourceTitle":"Calculation Problems","calculatorUse":null,"isCalculation":false,"parts":[{"id":"e9235b43-df4f-4205-91d3-ba56d695d555","label":"0","content":"What is the total amount of money Mr Blair spends?","markscheme":"- Pens: $(30 \\div 5) \\times 85 = 510$p or £5.10 M1\n- Rulers: $(30 \\div 10) \\times 2.64 = £7.92$ M1\n- Pencils: $(30 \\div 6) \\times 52 = 260$p or £2.60 M1\n- Calculators: $30 \\times 6.25 = £187.50$ M1\n- Total: $5.10 + 7.92 + 2.60 + 187.50 = £203.12$ A1","marks":5,"order":0,"markingRubric":{"totalMarks":5,"points":[{"id":"p1","marks":1,"description":"Calculates cost of

Item	Price
Pens	5 for 85p
Rulers	10 for £2.64
Pencils	6 for 52p
Calculators	£6.25 each

Calculation Problems

Question 2

Price List

Calculation Problems Questions

Calculation Problems

Question 2

Price List

Calculation Problems Questions