Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 197 · 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. 1.59 − 27 =
2. 2.58 − 14 =
3. 3.197 + 99 =
4. 4.56 − 29 =
5. 5.A train leaves at 7:20 and reaches the next city at 9:15. How many minutes is the journey?
6. 6.Best estimate of 73 × 47? (a) 350 (b) 35000 (c) 3500
7. 7.35 laddoos are packed in boxes of 4. How many laddoos are left over?
8. 8.75 + 19 =
9. 9.A film starts at 6:20 and ends at 8:55. How many minutes long is the film?
10. 10.2 + ? = 10
11. 11.12² =
12. 12.504 ÷ 6 =
13. 13.93 − 81 =
14. 14.You buy a storybook for ₹13 and a pen for ₹41. You pay with a ₹100 note. How much change do you get, in rupees?
15. 15.93 − 58 =
16. 16.82 − 75 =
17. 17.28 + 29 =
18. 18.5% of ₹900 =
19. 19.296 ÷ 8 =
20. 20.44 + 33 =
21. 21.84 + 39 =
22. 22.420 ÷ 5 =
23. 23.14² =
24. 24.Best estimate of 675 + 620? (a) 1500 (b) 1300 (c) 1100
25. 25.99 − 64 =
26. 26.69 − 51 =
27. 27.168 ÷ 4 =
28. 28.Best estimate of 845 + 333? (a) 1100 (b) 1300 (c) 900
29. 29.53 − 29 =
30. 30.16 × 9 =
31. 31.Double 63 =
32. 32.Half of 30 =
33. 33.144 ÷ 3 =
34. 34.11 + 12 =
35. 35.23 × 7 =
36. 36.311 − 285 =
37. 37.63 − 47 =
38. 38.88 + 4 =
39. 39.Double 31 =
40. 40.31 × 8 =

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