Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 701 · 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.Double 33 =
2. 2.42 + 65 =
3. 3.144 ÷ 4 =
4. 4.You buy a notebook for ₹23 and a pen for ₹44. You pay with a ₹100 note. How much change do you get, in rupees?
5. 5.29 + 30 =
6. 6.A film starts at 1:20 and ends at 3:30. How many minutes long is the film?
7. 7.116 − 77 =
8. 8.4 + ? = 10
9. 9.Half of 176 =
10. 10.24 + 25 =
11. 11.21² =
12. 12.123 ÷ 3 =
13. 13.50% of ₹360 =
14. 14.85 + ? = 100
15. 15.1005 − 993 =
16. 16.95 − 15 =
17. 17.Best estimate of 338 + 360? (a) 900 (b) 500 (c) 700
18. 18.41 × 6 =
19. 19.11 + 13 =
20. 20.38 × 8 =
21. 21.96 − 69 =
22. 22.31 laddoos are packed in boxes of 3. How many laddoos are left over?
23. 23.22 + 24 =
24. 24.30 + 73 =
25. 25.142 children stand in rows of 9. How many full rows can they make?
26. 26.25% of ₹560 =
27. 27.Double 24 =
28. 28.30 × 8 =
29. 29.44 + 9 =
30. 30.77 + 29 =
31. 31.18 + 17 =
32. 32.Double 51 =
33. 33.28² =
34. 34.59 × 3 =
35. 35.17 laddoos are packed in boxes of 4. How many laddoos are left over?
36. 36.7 + ? = 10
37. 37.You start your homework at 3:55 and finish at 6:55. How many minutes did you work?
38. 38.28 × 8 =
39. 39.Half of 68 =
40. 40.5% of ₹880 =

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