Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 129 · 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. 1.16 × 8 =
2. 2.228 ÷ 4 =
3. 3.1010 − 984 =
4. 4.46 + 19 =
5. 5.6 + ? = 10
6. 6.71 × 9 =
7. 7.328 − 287 =
8. 8.423 ÷ 9 =
9. 9.80 + ? = 100
10. 10.Best estimate of 431 + 691? (a) 900 (b) 1100 (c) 1300
11. 11.27² =
12. 12.15 + ? = 100
13. 13.93 × 9 =
14. 14.A film starts at 4:30 and ends at 7:10. How many minutes long is the film?
15. 15.97 − 32 =
16. 16.98 ÷ 7 =
17. 17.What is the remainder when 26 is divided by 4?
18. 18.You buy a bag of mangoes for ₹252 and pay with a ₹500 note. How much change do you get, in rupees?
19. 19.A cricket match starts at 3:30 and the first innings ends at 4:15. How many minutes did the innings last?
20. 20.315 − 285 =
21. 21.160 ÷ 4 =
22. 22.95 − 57 =
23. 23.7 + 9 =
24. 24.10% of ₹460 =
25. 25.16² =
26. 26.50% of ₹70 =
27. 27.663 + 99 =
28. 28.A cricket match starts at 5:55 and the first innings ends at 9:00. How many minutes did the innings last?
29. 29.A film starts at 8:30 and ends at 10:40. How many minutes long is the film?
30. 30.Half of 120 =
31. 31.26 + 25 =
32. 32.13 + 14 =
33. 33.264 ÷ 6 =
34. 34.2 + ? = 10
35. 35.502 − 491 =
36. 36.A train leaves at 2:40 and reaches the next city at 3:35. How many minutes is the journey?
37. 37.91 − 79 =
38. 38.47 + 9 =
39. 39.46 + 68 =
40. 40.72 − 9 =

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