Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 157 · 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. 1.21 − 9 =
2. 2.59 − 39 =
3. 3.52 × 8 =
4. 4.You start your homework at 2:40 and finish at 3:30. How many minutes did you work?
5. 5.88 − 9 =
6. 6.16² =
7. 7.64 + 9 =
8. 8.30 + 31 =
9. 9.76 − 66 =
10. 10.21 × 6 =
11. 11.9 + 11 =
12. 12.27 + 29 =
13. 13.A cricket match starts at 4:00 and the first innings ends at 6:35. How many minutes did the innings last?
14. 14.210 ÷ 6 =
15. 15.356 + 99 =
16. 16.1009 − 987 =
17. 17.83 × 9 =
18. 18.50 + 33 =
19. 19.22 + 21 =
20. 20.224 ÷ 8 =
21. 21.What is the remainder when 22 is divided by 3?
22. 22.A film starts at 6:35 and ends at 7:15. How many minutes long is the film?
23. 23.228 ÷ 4 =
24. 24.65 + 7 =
25. 25.7 + 5 =
26. 26.Best estimate of 693 + 155? (a) 900 (b) 700 (c) 1100
27. 27.380 ÷ 5 =
28. 28.71 − 16 =
29. 29.You buy a notebook for ₹132 and pay with a ₹500 note. How much change do you get, in rupees?
30. 30.You buy a notebook for ₹14 and a pen for ₹23. You pay with a ₹100 note. How much change do you get, in rupees?
31. 31.14² =
32. 32.236 ÷ 4 =
33. 33.71 + ? = 100
34. 34.You buy a cricket ball for ₹406 and pay with a ₹500 note. How much change do you get, in rupees?
35. 35.7 + ? = 10
36. 36.26 children stand in rows of 4. How many full rows can they make?
37. 37.184 ÷ 8 =
38. 38.77 + 8 =
39. 39.38 + 61 =
40. 40.88 × 3 =

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