Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 733 · 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. 1.90 − 71 =
2. 2.210 − 194 =
3. 3.27 + 29 =
4. 4.58 − 21 =
5. 5.49 × 9 =
6. 6.37 + 9 =
7. 7.45 laddoos are packed in boxes of 4. How many laddoos are left over?
8. 8.70 + 37 =
9. 9.48 ÷ 4 =
10. 10.508 − 491 =
11. 11.You start your homework at 8:55 and finish at 10:05. How many minutes did you work?
12. 12.576 ÷ 9 =
13. 13.Half of 190 =
14. 14.Double 89 =
15. 15.114 laddoos are packed in boxes of 8. How many laddoos are left over?
16. 16.Half of 140 =
17. 17.You start your homework at 1:35 and finish at 4:55. How many minutes did you work?
18. 18.You buy a pencil box for ₹14 and pay with a ₹100 note. How much change do you get, in rupees?
19. 19.14 × 6 =
20. 20.Double 61 =
21. 21.Best estimate of 87 × 33? (a) 2700 (b) 27000 (c) 270
22. 22.18² =
23. 23.46 + 23 =
24. 24.7 + 4 =
25. 25.You start your homework at 3:55 and finish at 4:40. How many minutes did you work?
26. 26.37 + 4 =
27. 27.248 ÷ 8 =
28. 28.192 ÷ 8 =
29. 29.14 × 9 =
30. 30.A train leaves at 7:15 and reaches the next city at 8:05. How many minutes is the journey?
31. 31.What is the remainder when 53 is divided by 4?
32. 32.56 ÷ 4 =
33. 33.69 − 31 =
34. 34.296 ÷ 4 =
35. 35.12² =
36. 36.79 − 64 =
37. 37.19 × 8 =
38. 38.37 × 4 =
39. 39.7 + 6 =
40. 40.96 − 85 =

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