Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 391 · 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.A cricket match starts at 2:00 and the first innings ends at 3:20. How many minutes did the innings last?
2. 2.62 × 6 =
3. 3.25 + 71 =
4. 4.57 × 4 =
5. 5.39 + ? = 100
6. 6.16 + 15 =
7. 7.25% of ₹520 =
8. 8.87 + 54 =
9. 9.113 − 95 =
10. 10.26 + 25 =
11. 11.Best estimate of 701 + 382? (a) 1100 (b) 900 (c) 1300
12. 12.47 + ? = 100
13. 13.217 + 99 =
14. 14.28 + 9 =
15. 15.53 − 9 =
16. 16.Best estimate of 812 + 184? (a) 1000 (b) 800 (c) 1200
17. 17.67 − 37 =
18. 18.76 + ? = 100
19. 19.A film starts at 3:25 and ends at 6:00. How many minutes long is the film?
20. 20.32 − 9 =
21. 21.21 × 4 =
22. 22.5% of ₹530 =
23. 23.58 children stand in rows of 7. How many full rows can they make?
24. 24.47 + 9 =
25. 25.5% of ₹810 =
26. 26.29 × 8 =
27. 27.103 laddoos are packed in boxes of 8. How many laddoos are left over?
28. 28.1030 − 988 =
29. 29.46 children stand in rows of 4. How many full rows can they make?
30. 30.You buy a box of crayons for ₹40 and a pen for ₹26. You pay with a ₹100 note. How much change do you get, in rupees?
31. 31.What is the remainder when 49 is divided by 9?
32. 32.7 + 7 =
33. 33.87 laddoos are packed in boxes of 8. How many laddoos are left over?
34. 34.231 ÷ 3 =
35. 35.You buy a storybook for ₹52 and pay with a ₹100 note. How much change do you get, in rupees?
36. 36.What is the remainder when 28 is divided by 3?
37. 37.9 + 11 =
38. 38.76 + 6 =
39. 39.71 × 6 =
40. 40.50% of ₹100 =

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