Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 711 · 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. 1.6 + 8 =
2. 2.43 children stand in rows of 3. How many full rows can they make?
3. 3.25% of ₹220 =
4. 4.A film starts at 3:15 and ends at 5:00. How many minutes long is the film?
5. 5.68 + 21 =
6. 6.12 + ? = 100
7. 7.25% of ₹480 =
8. 8.15² =
9. 9.16 + 6 =
10. 10.A cricket match starts at 1:30 and the first innings ends at 3:55. How many minutes did the innings last?
11. 11.Double 87 =
12. 12.343 ÷ 7 =
13. 13.12 × 8 =
14. 14.63 children stand in rows of 4. How many full rows can they make?
15. 15.25% of ₹130 =
16. 16.Best estimate of 254 + 271? (a) 600 (b) 400 (c) 800
17. 17.Half of 94 =
18. 18.75 + ? = 100
19. 19.86 + ? = 100
20. 20.72 + ? = 100
21. 21.14 + 9 =
22. 22.81 + ? = 100
23. 23.86 × 7 =
24. 24.87 + 9 =
25. 25.Best estimate of 296 + 663? (a) 800 (b) 1000 (c) 1200
26. 26.25 + 27 =
27. 27.Half of 82 =
28. 28.23 + 25 =
29. 29.9 + 10 =
30. 30.52 ÷ 4 =
31. 31.What is the remainder when 61 is divided by 7?
32. 32.Best estimate of 33 × 87? (a) 2700 (b) 27000 (c) 270
33. 33.16 + 15 =
34. 34.A cricket match starts at 3:40 and the first innings ends at 6:30. How many minutes did the innings last?
35. 35.You buy a cricket ball for ₹25 and pay with a ₹100 note. How much change do you get, in rupees?
36. 36.346 − 99 =
37. 37.A train leaves at 6:55 and reaches the next city at 7:40. How many minutes is the journey?
38. 38.Half of 40 =
39. 39.52 + ? = 100
40. 40.55 + 6 =

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