1. Percentage – Expressing a Change – Calculator – Shootout!
Students compete (1v1 in pairs or in teams, at their tables or at the front) to
answer questions the quickest.
Students could write on your whiteboard or their own.
Delete too difficult/easy question slides beforehand (and its individual intro slide).
Click anywhere to start the music, then click ‘Go’ to show the question,
then click again to show the answer.
This game has sound!

2. Shootout!
Expressing a Change

3. Correct Answer = 1pt
Fastest! = 1pt

4. Ready?
Go!

5. 25% In their first season Wimbly Wanderers scored 40 goals.
In their second season they scored 50 goals.
What is this as a percentage increase?
25%

6. Ready?
Go!

7. 40% Last month Sophie earned £200. This month she earned £280
What is this as a percentage increase?
40%

8. Ready?
Go!

9. 40% Anna scored 60 on her science test.
She revised for the next test and scored 84.
How much better is this result?
40%

10. Ready?
Go!

11. Express this as a percentage change.
On Monday is rained 40 mm.
On Tuesday it rained 54 mm.
Express this as a percentage change.
35%

12. Ready?
Go!

13. 32.5% In their first year Clatham Green scored 40 goals.
In their second year they scored 53 goals.
What is this as a percentage increase?
(1 dp)
32.5%

14. Ready?
Go!

15. −26.2% Joe scored 65 on his science test.
He didn’t revise for the next test
and scored 48.
Express this as a percentage change.
(1 dp)
−26.2%

16. Ready?
Go!

17. +54.05% On Monday it was sunny for 37 minutes.
On Tuesday it was sunny for 57 minutes.
Express this as a percentage change.
(2 dp)
+54.05%

18. Ready?
Go!

19. +39.29% Jack invested £140 for a year.
He gained interest and withdrew £195.
What is this as a percentage change?
(2 dp)
+39.29%

20. Ready?
Go!

21. 34.29% A burger cost £3.50 The restaurant puts it on sale for £2.30
What percentage sale is this?
(2 dp)
34.29%

22. Ready?
Go!

23. 23.16% Last month Sophie earned £367. This month she earned £452
What is this as a percentage increase?
(2 dp)
23.16%

24. Ready?
Go!

25. Express this as a percentage change.
A car cost £24,000 last year.
This year it is worth £21,400.
Express this as a percentage change.
(2 dp)
−10.83%

26. Ready?
Go!

27. +57.38% Last year a tree was 61 cm tall. This year it is 96 cm tall.
Express this as a percentage change.
(2 dp)
+57.38%

28. Ready?
Go!

29. 29.10% Anna invested £323 for a year.
She gained interest and withdrew £417.
What is this as a percentage change?
(2 dp)
29.10%

30. Ready?
Go!

31. Express this as a percentage change.
On Monday is rained 122 mm.
On Tuesday it rained 101 mm.
Express this as a percentage change.
(2 dp)
−17.21%

32. Ready?
Go!

33. −36.15% Hannah scored 130 on her geography test.
She didn’t revise for the next test
and scored 83.
Express this as a percentage change.
(2 dp)
−36.15%

34. Ready?
Go!

35. −74.78% On Monday it was sunny for 3 hours and 42 minutes.
On Tuesday it was sunny for 56 minutes.
Express this as a percentage change.
(2 dp)
−74.78%

36. Ready?
Go!

37. +110.94% Mike scored 32 on his geography test.
He revised for the next test and scored 67.5.
How much better is this result?
(2 dp) %

39. tom@goteachmaths.co.uk Questions? Comments? Suggestions?
…or have you found a mistake!?
Any feedback would be appreciated .
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