Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 877 · 40 questions

How to do it in your head (Look first): A 9, 19 or 99 → round and adjust. Two close numbers → count up (or near doubles when adding). × or ÷ by 4 or 8 → double or halve; other sums → split into tens and ones.

1. 1.You buy a kite for ₹372 and pay with a ₹500 note. How much change do you get, in rupees?
2. 2.Half of 50 =
3. 3.Double 51 =
4. 4.Best estimate of 47 × 89? (a) 45000 (b) 4500 (c) 450
5. 5.84 ÷ 4 =
6. 6.84 ÷ 7 =
7. 7.79 − 9 =
8. 8.70 + 61 =
9. 9.10 + 11 =
10. 10.32 × 8 =
11. 11.65 − 29 =
12. 12.132 ÷ 4 =
13. 13.You buy a kite for ₹117 and pay with a ₹500 note. How much change do you get, in rupees?
14. 14.10% of ₹70 =
15. 15.6 + 8 =
16. 16.You buy a pencil box for ₹207 and pay with a ₹500 note. How much change do you get, in rupees?
17. 17.28 × 4 =
18. 18.72 + 19 =
19. 19.Half of 180 =
20. 20.30 + 29 =
21. 21.15 + 14 =
22. 22.Half of 128 =
23. 23.27 + 29 =
24. 24.56 − 37 =
25. 25.19 + 6 =
26. 26.86 − 29 =
27. 27.Best estimate of 287 + 643? (a) 700 (b) 1100 (c) 900
28. 28.166 − 99 =
29. 29.17² =
30. 30.62 − 52 =
31. 31.17 × 8 =
32. 32.A film starts at 8:25 and ends at 9:10. How many minutes long is the film?
33. 33.10% of ₹660 =
34. 34.63 children stand in rows of 6. How many full rows can they make?
35. 35.You buy a water bottle for ₹77 and pay with a ₹100 note. How much change do you get, in rupees?
36. 36.42 × 8 =
37. 37.192 ÷ 8 =
38. 38.A film starts at 3:35 and ends at 5:50. How many minutes long is the film?
39. 39.72 ÷ 4 =
40. 40.You buy a storybook for ₹296 and pay with a ₹500 note. How much change do you get, in rupees?

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