Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 300 · 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. 1.82 + ? = 100
2. 2.A film starts at 8:45 and ends at 11:40. How many minutes long is the film?
3. 3.You buy a notebook for ₹234 and pay with a ₹500 note. How much change do you get, in rupees?
4. 4.96 − 61 =
5. 5.83 − 69 =
6. 6.54 + 9 =
7. 7.113 − 93 =
8. 8.30 + 21 =
9. 9.6 + 8 =
10. 10.Best estimate of 51 × 16? (a) 1000 (b) 100 (c) 10000
11. 11.203 ÷ 7 =
12. 12.325 − 282 =
13. 13.41 × 4 =
14. 14.89 + 72 =
15. 15.78 × 7 =
16. 16.78 ÷ 3 =
17. 17.96 ÷ 4 =
18. 18.You start your homework at 6:30 and finish at 8:30. How many minutes did you work?
19. 19.63 − 9 =
20. 20.56 − 13 =
21. 21.58 + 4 =
22. 22.28 + 19 =
23. 23.74 − 24 =
24. 24.18 + 5 =
25. 25.112 ÷ 4 =
26. 26.68 + 4 =
27. 27.Double 92 =
28. 28.6 + ? = 10
29. 29.24 × 8 =
30. 30.What is the remainder when 45 is divided by 6?
31. 31.You buy a box of crayons for ₹31 and a pen for ₹33. You pay with a ₹100 note. How much change do you get, in rupees?
32. 32.47 + 8 =
33. 33.You buy a storybook for ₹22 and pay with a ₹100 note. How much change do you get, in rupees?
34. 34.102 − 57 =
35. 35.12 × 8 =
36. 36.2 + ? = 10
37. 37.You buy a notebook for ₹95 and pay with a ₹100 note. How much change do you get, in rupees?
38. 38.You buy a pencil box for ₹16 and pay with a ₹100 note. How much change do you get, in rupees?
39. 39.31 + 19 =
40. 40.17 + 18 =

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