Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 203 · 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. 1.1012 − 998 =
2. 2.3 + ? = 10
3. 3.55 + 19 =
4. 4.10 + 11 =
5. 5.A film starts at 1:05 and ends at 3:30. How many minutes long is the film?
6. 6.1 + ? = 10
7. 7.9 + 10 =
8. 8.208 − 183 =
9. 9.22 × 8 =
10. 10.76 laddoos are packed in boxes of 5. How many laddoos are left over?
11. 11.26² =
12. 12.55 + 6 =
13. 13.83 − 35 =
14. 14.Best estimate of 98 × 66? (a) 70000 (b) 7000 (c) 700
15. 15.224 ÷ 7 =
16. 16.48 + 81 =
17. 17.128 − 77 =
18. 18.You buy a cricket ball for ₹172 and pay with a ₹500 note. How much change do you get, in rupees?
19. 19.527 − 480 =
20. 20.A train leaves at 6:40 and reaches the next city at 9:40. How many minutes is the journey?
21. 21.55 − 36 =
22. 22.9 + 2 =
23. 23.29 + 30 =
24. 24.65 × 8 =
25. 25.39 × 8 =
26. 26.32 − 19 =
27. 27.10% of ₹850 =
28. 28.19 + 21 =
29. 29.21² =
30. 30.10% of ₹310 =
31. 31.54 × 4 =
32. 32.66 + 52 =
33. 33.16 + 17 =
34. 34.64 ÷ 4 =
35. 35.11² =
36. 36.58 + 37 =
37. 37.50% of ₹320 =
38. 38.41 × 4 =
39. 39.You buy a storybook for ₹324 and pay with a ₹500 note. How much change do you get, in rupees?
40. 40.What is the remainder when 39 is divided by 4?

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