GCSE Maths reverse percentages questions using a ruler and the length of shapes. I\'m trying this approach to see if I can cut out some of the verbal issues that arise in \'story problems\'

1. Percentages: a visual approach

2. £200 0 10 20 30 40 50 60 70 80 90 100

3. £200 ??? 0 10 20 30 40 50 60 70 80 90 100

4. £200 ??? ??? 0 10 20 30 40 50 60 70 80 90 100

5. £200 ??? ??? How did you work it out? 0 10 20 30 40 50 60 70 80 90 100

6. £200 ??? ??? How did you work it out? Write down the steps in detail 0 10 20 30 40 50 60 70 80 90 100

7. £200 ??? ??? How did you work it out? Write down the steps in detail Try the next one… 0 10 20 30 40 50 60 70 80 90 100

8. The next problem…

9. £140 0 10 20 30 40 50 60 70 80 90 100

10. £140 ??? 0 10 20 30 40 50 60 70 80 90 100

11. £140 ??? ??? 0 10 20 30 40 50 60 70 80 90 100

12. It gets better  …

13. £180 0 10 20 30 40 50 60 70 80 90 100 110 120

14. £180 ??? 0 10 20 30 40 50 60 70 80 90 100 110 120

15. £180 ??? ??? 0 10 20 30 40 50 60 70 80 90 100 110 120

16. Another one…

17. £352.50 £??? 0 10 20 30 40 50 60 70 80 90 100 110 120

18. £352.50 £??? £??? 0 10 20 30 40 50 60 70 80 90 100 110 120

19. There’s more…

20. A laptop is marked as 10% off in a sale. The price is £540. What was the original cost of the laptop?

21. £540 A laptop is marked as 10% off in a sale. The sale price is £540. What was the original cost of the laptop? 0 10 20 30 40 50 60 70 80 90 100

22. £540 A laptop is marked as 10% off in a sale. The sale price is £540. What was the original cost of the laptop? £??? 0 10 20 30 40 50 60 70 80 90 100

23. The last one…

24. Algernon has received a 5% pay rise. His new wages are £18 275. What were Algernon’s wages before the pay rise? £18 275 ??? 0 10 20 30 40 50 60 70 80 90 100 110 120