Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 704 · 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. 1.73 + ? = 100
2. 2.You buy a box of crayons for ₹23 and a pen for ₹29. You pay with a ₹100 note. How much change do you get, in rupees?
3. 3.10% of ₹170 =
4. 4.50% of ₹680 =
5. 5.A film starts at 1:55 and ends at 3:55. How many minutes long is the film?
6. 6.16 + 15 =
7. 7.192 ÷ 4 =
8. 8.25% of ₹880 =
9. 9.120 ÷ 8 =
10. 10.11 + 12 =
11. 11.746 − 99 =
12. 12.A cricket match starts at 1:20 and the first innings ends at 4:20. How many minutes did the innings last?
13. 13.67 + 29 =
14. 14.Double 53 =
15. 15.322 ÷ 7 =
16. 16.6 + 6 =
17. 17.5% of ₹570 =
18. 18.5% of ₹320 =
19. 19.Best estimate of 46 × 29? (a) 150 (b) 15000 (c) 1500
20. 20.80 + 19 =
21. 21.28 children stand in rows of 5. How many full rows can they make?
22. 22.You buy a notebook for ₹66 and pay with a ₹100 note. How much change do you get, in rupees?
23. 23.112 ÷ 8 =
24. 24.Half of 70 =
25. 25.A film starts at 2:55 and ends at 6:05. How many minutes long is the film?
26. 26.33 × 8 =
27. 27.Double 41 =
28. 28.24 + 25 =
29. 29.240 ÷ 8 =
30. 30.108 + 99 =
31. 31.47 + 5 =
32. 32.224 ÷ 8 =
33. 33.43 + ? = 100
34. 34.47 + 27 =
35. 35.60 × 4 =
36. 36.You buy a notebook for ₹185 and pay with a ₹500 note. How much change do you get, in rupees?
37. 37.87 children stand in rows of 7. How many full rows can they make?
38. 38.You buy a storybook for ₹12 and pay with a ₹100 note. How much change do you get, in rupees?
39. 39.15 + 9 =
40. 40.10% of ₹700 =

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