Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 111 · 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 + 29 =
2. 2.You buy a pencil box for ₹418 and pay with a ₹500 note. How much change do you get, in rupees?
3. 3.46 + 6 =
4. 4.33 + 14 =
5. 5.84 + 58 =
6. 6.2 + ? = 10
7. 7.What is the remainder when 105 is divided by 9?
8. 8.29 + 28 =
9. 9.75 ÷ 5 =
10. 10.40 + 9 =
11. 11.A film starts at 5:45 and ends at 8:25. How many minutes long is the film?
12. 12.23 + 21 =
13. 13.You buy a water bottle for ₹364 and pay with a ₹500 note. How much change do you get, in rupees?
14. 14.281 + 99 =
15. 15.109 − 88 =
16. 16.27² =
17. 17.27 × 7 =
18. 18.99 − 69 =
19. 19.24 + 25 =
20. 20.20 × 8 =
21. 21.What is the remainder when 108 is divided by 8?
22. 22.32 children stand in rows of 7. How many full rows can they make?
23. 23.65 + 15 =
24. 24.21 + 23 =
25. 25.323 − 298 =
26. 26.Half of 138 =
27. 27.19 × 6 =
28. 28.12² =
29. 29.42 + ? = 100
30. 30.73 × 4 =
31. 31.21 + 20 =
32. 32.104 − 89 =
33. 33.A film starts at 3:30 and ends at 4:15. How many minutes long is the film?
34. 34.327 − 287 =
35. 35.21² =
36. 36.Double 41 =
37. 37.Double 91 =
38. 38.24 + 26 =
39. 39.5% of ₹820 =
40. 40.123 − 95 =

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