This resource provides animated demonstrations of the mathematical method Check animations and delete slides not needed for your class Sam Sal 21 28 7 7 7 7 7 7 7 Sam Sal Sam and Sal shared ID: 1019782
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1. Ratio – Reverse – DemonstrationThis resource provides animated demonstrations of the mathematical method.Check animations and delete slides not needed for your class.
2. SamSal21287777777SamSalSam and Sal shared some fries in the ratio 3 : 4Sam got 21 fries. How many did Sal get?Draw a Bar Model to calculate how much one part is worth.£21 ÷ 3 = 7 fries per part28
3. SalSam3515555555555SamSalSam and Sal shared some fries in the ratio 7 : 3Sal got 15 fries. How many did Sam get?Draw a Bar Model to calculate how much one part is worth.15 ÷ 3 = 5 fries per part535①
4. JessJohn9123333333JessJohnJess and John shared some marbles in the ratio 3 : 4John got 12 marbles. How many marbles were there in total?Draw a Bar Model to calculate how much one part is worth.12 ÷ 4 = 3 marbles per part912= 21 marbles in total
5. 352555555555555JessJohnJess and John shared some marbles in the ratio 7 : 5Jess got 35 marbles. How many marbles were there in total?Draw a Bar Model to calculate how much one part is worth.35 ÷ 7 = 5 marblesper part5JessJohn3525= 60 marbles in total②
6. JoshJack£8£1244444JoshJackJosh and Jack the bandits stole some money from the bank!They divided it in the ratio 2 : 3 and Jack got £4 more than Josh.How much did they each get?Draw a Bar Model to calculate how much one part is worth.£8£12£4
7. JoshJack£10£255555555JoshJackJosh and Jack the bandits stole some money from the bank!They divided it in the ratio 2 : 5 and Jack got £15 more than Josh.How much did they each get?Draw a Bar Model to calculate how much one part is worth.£15 ÷ 3 = £5 per part£10£25£15③
8. AnnaAndy1228444444444AnnaAndyAnna and Andy shared some sweets in the ratio 3 : 7Andy got 16 more than Anna.How many sweets were there in total?Draw a Bar Model to calculate how much one part is worth.16 ÷ 4 = 4 per part164= 40 sweets in total1228
9. AnnaAndy301866666666AnnaAndyAnna and Andy shared some sweets in the ratio 5 : 3Anna got 12 more than Andy.How many sweets were there in total?Draw a Bar Model to calculate how much one part is worth.12 ÷ 2 = 6 per part301812= 48 sweets in total④
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12. Sam got 21.Sal got 28.example1) Jack and Josh shared some sweets in the ratio 2 : 3 Jack got 18. How many sweets did Josh get?2) Jim and Jane shared some money in the ratio 2 : 5 Jane got £35. How much money was there in total?3) Tim and Tom shared some fries in the ratio 7 : 3 Tim got 20 more fries than Tom. How many fries did Tom get?Sam and Sal shared some fries in the ratio 3 : 4Sam got 21 fries. How many did Sal get?
13. Sam got 21.Sal got 28.example1) Jack and Josh shared some sweets in the ratio 2 : 3 Jack got 18. How many sweets did Josh get?2) Jim and Jane shared some money in the ratio 2 : 5 Jane got £35. How much money was there in total?3) Tim and Tom shared some fries in the ratio 7 : 3 Tim got 20 more fries than Tom. How many fries did Tom get?Sam and Sal shared some fries in the ratio 3 : 4Sam got 21 fries. How many did Sal get?Josh got 27.Jim got £14.£49 in total.Tim got 35.Tom got 15.Answers
14. There were40 sweets in total.example1) Jack and Josh shared some sweets in the ratio 4 : 7 Josh got 18 more sweets than Jack. How many sweets were there in total?2) Jim and Jane shared some money in the ratio 3 : 10 Jane got £25. How much less did Jim get?3) May, Max and Mary shared some fries in the ratio 2 : 7 : 3 Together, May and Max got 30 more fries than Mary. How many fires were there in total?Anna and Andy shared some sweets in the ratio 3 : 7Andy got 16 more than Anna.How many sweets were there in total?
15. 1) Jack and Josh shared some sweets in the ratio 4 : 7 Josh got 18 more sweets than Jack. How many sweets were there in total?2) Jim and Jane shared some money in the ratio 3 : 10 Jane got £25. How much less did Jim get?3) May, Max and Matt shared some fries in the ratio 2 : 7 : 3 Together, May and Max got 30 more fries than Mary. How many fries were there in total?66 sweets£17.50 less10 : 35 : 1560 fries in totalThere were40 sweets in total.exampleAnna and Andy shared some sweets in the ratio 3 : 7Andy got 16 more than Anna.How many sweets were there in total?Answers
16. Questions?Comments?Suggestions?…or have you found a mistake!?Any feedback would be appreciated .Please feel free to email:tom@goteachmaths.co.uk