Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 137 · 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. 1.292 ÷ 4 =
2. 2.78 + 9 =
3. 3.52 − 21 =
4. 4.20 + ? = 100
5. 5.34 × 5 =
6. 6.A cricket match starts at 1:40 and the first innings ends at 3:25. How many minutes did the innings last?
7. 7.61 + ? = 100
8. 8.59 − 48 =
9. 9.108 ÷ 4 =
10. 10.You buy a storybook for ₹234 and pay with a ₹500 note. How much change do you get, in rupees?
11. 11.47 + 6 =
12. 12.72 − 29 =
13. 13.92 ÷ 4 =
14. 14.25² =
15. 15.2 + ? = 10
16. 16.311 − 280 =
17. 17.94 − 23 =
18. 18.Half of 34 =
19. 19.10 + 12 =
20. 20.128 ÷ 8 =
21. 21.Half of 32 =
22. 22.38 × 8 =
23. 23.You buy a kite for ₹41 and a pen for ₹34. You pay with a ₹100 note. How much change do you get, in rupees?
24. 24.32 × 8 =
25. 25.56 ÷ 4 =
26. 26.27 × 8 =
27. 27.15 + 9 =
28. 28.You buy a bag of mangoes for ₹18 and a pen for ₹15. You pay with a ₹100 note. How much change do you get, in rupees?
29. 29.10 + 11 =
30. 30.232 ÷ 4 =
31. 31.You buy a bag of mangoes for ₹33 and a pen for ₹18. You pay with a ₹100 note. How much change do you get, in rupees?
32. 32.91 − 51 =
33. 33.15 × 4 =
34. 34.65 + 6 =
35. 35.What is the remainder when 38 is divided by 6?
36. 36.A film starts at 2:50 and ends at 5:20. How many minutes long is the film?
37. 37.396 ÷ 6 =
38. 38.11 + 12 =
39. 39.50% of ₹690 =
40. 40.5% of ₹50 =

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