Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 375 · 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. 1.228 ÷ 4 =
2. 2.You buy a notebook for ₹43 and pay with a ₹100 note. How much change do you get, in rupees?
3. 3.8 + ? = 10
4. 4.You buy a box of crayons for ₹31 and a pen for ₹41. You pay with a ₹100 note. How much change do you get, in rupees?
5. 5.1025 − 976 =
6. 6.Best estimate of 382 + 122? (a) 500 (b) 300 (c) 700
7. 7.57 × 5 =
8. 8.192 ÷ 3 =
9. 9.What is the remainder when 36 is divided by 7?
10. 10.384 ÷ 6 =
11. 11.98 − 81 =
12. 12.Double 99 =
13. 13.84 ÷ 4 =
14. 14.46 − 9 =
15. 15.74 + 9 =
16. 16.48 + 4 =
17. 17.42 ÷ 3 =
18. 18.60 − 19 =
19. 19.What is the remainder when 38 is divided by 3?
20. 20.248 ÷ 4 =
21. 21.89 + 5 =
22. 22.You buy a bag of mangoes for ₹89 and pay with a ₹100 note. How much change do you get, in rupees?
23. 23.7 + 8 =
24. 24.You start your homework at 5:30 and finish at 8:50. How many minutes did you work?
25. 25.95 × 8 =
26. 26.63 × 4 =
27. 27.12 × 4 =
28. 28.570 ÷ 6 =
29. 29.A film starts at 3:40 and ends at 6:50. How many minutes long is the film?
30. 30.16 + 18 =
31. 31.What is the remainder when 17 is divided by 4?
32. 32.43 + 19 =
33. 33.10% of ₹450 =
34. 34.9 + ? = 10
35. 35.460 ÷ 5 =
36. 36.57 + 9 =
37. 37.34 × 7 =
38. 38.584 − 99 =
39. 39.You buy a cricket ball for ₹38 and a pen for ₹38. You pay with a ₹100 note. How much change do you get, in rupees?
40. 40.21² =

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