Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 775 · 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. 1.98 × 5 =
2. 2.What is the remainder when 27 is divided by 4?
3. 3.306 − 99 =
4. 4.738 ÷ 9 =
5. 5.A cricket match starts at 2:30 and the first innings ends at 5:10. How many minutes did the innings last?
6. 6.94 − 52 =
7. 7.249 + 99 =
8. 8.17 + 19 =
9. 9.79 + 59 =
10. 10.38 + 9 =
11. 11.77 + 28 =
12. 12.41 + ? = 100
13. 13.25% of ₹640 =
14. 14.31 × 3 =
15. 15.156 ÷ 4 =
16. 16.16 + 18 =
17. 17.Best estimate of 708 + 125? (a) 600 (b) 800 (c) 1000
18. 18.1016 − 988 =
19. 19.212 ÷ 4 =
20. 20.10 + 9 =
21. 21.A train leaves at 6:10 and reaches the next city at 8:20. How many minutes is the journey?
22. 22.22 × 3 =
23. 23.47 × 4 =
24. 24.5% of ₹120 =
25. 25.22² =
26. 26.50% of ₹510 =
27. 27.A cricket match starts at 6:10 and the first innings ends at 8:40. How many minutes did the innings last?
28. 28.53 − 43 =
29. 29.You buy a box of crayons for ₹31 and a pen for ₹31. You pay with a ₹100 note. How much change do you get, in rupees?
30. 30.72 ÷ 4 =
31. 31.62 children stand in rows of 8. How many full rows can they make?
32. 32.200 ÷ 8 =
33. 33.78 − 15 =
34. 34.You buy a pencil box for ₹77 and pay with a ₹100 note. How much change do you get, in rupees?
35. 35.27 + 4 =
36. 36.86 × 4 =
37. 37.50% of ₹420 =
38. 38.72 + 48 =
39. 39.9 + 6 =
40. 40.38 × 7 =

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