Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 149 · 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. 1.66 − 49 =
2. 2.31 + 82 =
3. 3.You buy a pencil box for ₹432 and pay with a ₹500 note. How much change do you get, in rupees?
4. 4.264 ÷ 8 =
5. 5.A cricket match starts at 8:00 and the first innings ends at 9:05. How many minutes did the innings last?
6. 6.5% of ₹270 =
7. 7.27 + 26 =
8. 8.32 × 6 =
9. 9.91 × 9 =
10. 10.A film starts at 2:35 and ends at 5:10. How many minutes long is the film?
11. 11.109 − 72 =
12. 12.34 × 8 =
13. 13.A cricket match starts at 4:50 and the first innings ends at 7:35. How many minutes did the innings last?
14. 14.28 + ? = 100
15. 15.Best estimate of 39 × 97? (a) 4000 (b) 40000 (c) 400
16. 16.218 − 198 =
17. 17.A film starts at 7:15 and ends at 8:40. How many minutes long is the film?
18. 18.10% of ₹450 =
19. 19.82 − 34 =
20. 20.82 + 17 =
21. 21.What is the remainder when 22 is divided by 4?
22. 22.63 × 7 =
23. 23.71 − 29 =
24. 24.59 + 89 =
25. 25.24 + 45 =
26. 26.76 + 65 =
27. 27.3 + ? = 10
28. 28.26 × 8 =
29. 29.You buy a notebook for ₹172 and pay with a ₹500 note. How much change do you get, in rupees?
30. 30.A train leaves at 1:50 and reaches the next city at 2:45. How many minutes is the journey?
31. 31.Double 31 =
32. 32.21 + 19 =
33. 33.22 + 21 =
34. 34.616 ÷ 8 =
35. 35.Half of 32 =
36. 36.22² =
37. 37.31 × 7 =
38. 38.24² =
39. 39.Half of 166 =
40. 40.21 × 3 =

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