Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 93 · 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. 1.30 + 75 =
2. 2.328 ÷ 8 =
3. 3.29 + 8 =
4. 4.Best estimate of 152 + 420? (a) 800 (b) 400 (c) 600
5. 5.You buy a storybook for ₹46 and pay with a ₹100 note. How much change do you get, in rupees?
6. 6.57 − 19 =
7. 7.What is the remainder when 64 is divided by 5?
8. 8.60 + 81 =
9. 9.69 + ? = 100
10. 10.47 laddoos are packed in boxes of 4. How many laddoos are left over?
11. 11.506 − 485 =
12. 12.86 + 35 =
13. 13.14 children stand in rows of 3. How many full rows can they make?
14. 14.67 + 8 =
15. 15.61 + 29 =
16. 16.37 × 8 =
17. 17.65 + 6 =
18. 18.10% of ₹480 =
19. 19.40 × 4 =
20. 20.56 + 9 =
21. 21.A film starts at 7:55 and ends at 11:15. How many minutes long is the film?
22. 22.22² =
23. 23.65 − 46 =
24. 24.What is the remainder when 94 is divided by 6?
25. 25.A film starts at 5:05 and ends at 6:05. How many minutes long is the film?
26. 26.14² =
27. 27.2 + ? = 10
28. 28.52 × 4 =
29. 29.63 + 71 =
30. 30.14 + ? = 100
31. 31.177 ÷ 3 =
32. 32.55 + ? = 100
33. 33.52 ÷ 4 =
34. 34.A cricket match starts at 7:10 and the first innings ends at 8:45. How many minutes did the innings last?
35. 35.77 + 32 =
36. 36.13 + 12 =
37. 37.27 + 6 =
38. 38.192 ÷ 8 =
39. 39.23 + 25 =
40. 40.68 + 66 =

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