Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 794 · 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. 1.256 ÷ 8 =
2. 2.74 + ? = 100
3. 3.18 × 8 =
4. 4.65 + 7 =
5. 5.81 − 32 =
6. 6.39 + 4 =
7. 7.220 ÷ 4 =
8. 8.46 children stand in rows of 9. How many full rows can they make?
9. 9.You buy a cricket ball for ₹170 and pay with a ₹500 note. How much change do you get, in rupees?
10. 10.47 + 9 =
11. 11.13 × 8 =
12. 12.22 + 24 =
13. 13.99 − 78 =
14. 14.29 + 84 =
15. 15.76 + 9 =
16. 16.What is the remainder when 38 is divided by 4?
17. 17.18² =
18. 18.56 + 42 =
19. 19.6 + ? = 10
20. 20.25 + 6 =
21. 21.What is the remainder when 44 is divided by 5?
22. 22.46 + 8 =
23. 23.Best estimate of 126 + 591? (a) 900 (b) 700 (c) 500
24. 24.5 + ? = 10
25. 25.A film starts at 7:15 and ends at 10:10. How many minutes long is the film?
26. 26.10% of ₹460 =
27. 27.21 + 81 =
28. 28.29 × 8 =
29. 29.77 + 4 =
30. 30.59 + 55 =
31. 31.69 − 48 =
32. 32.82 laddoos are packed in boxes of 6. How many laddoos are left over?
33. 33.144 ÷ 8 =
34. 34.39 + 19 =
35. 35.25% of ₹310 =
36. 36.93 laddoos are packed in boxes of 9. How many laddoos are left over?
37. 37.10% of ₹500 =
38. 38.Double 46 =
39. 39.83 − 9 =
40. 40.56 − 42 =

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