Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 601 · 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. 1.16 × 8 =
2. 2.33 × 6 =
3. 3.240 ÷ 8 =
4. 4.Half of 60 =
5. 5.76 − 9 =
6. 6.A film starts at 5:45 and ends at 7:15. How many minutes long is the film?
7. 7.69 − 32 =
8. 8.55 children stand in rows of 8. How many full rows can they make?
9. 9.330 − 279 =
10. 10.You buy a notebook for ₹29 and a pen for ₹19. You pay with a ₹100 note. How much change do you get, in rupees?
11. 11.49 × 4 =
12. 12.85 + 43 =
13. 13.45 + 36 =
14. 14.You start your homework at 8:10 and finish at 8:45. How many minutes did you work?
15. 15.15² =
16. 16.17² =
17. 17.99 − 21 =
18. 18.14 × 8 =
19. 19.12 + 14 =
20. 20.24 + 23 =
21. 21.A cricket match starts at 3:05 and the first innings ends at 6:00. How many minutes did the innings last?
22. 22.Best estimate of 173 + 808? (a) 800 (b) 1200 (c) 1000
23. 23.29² =
24. 24.600 ÷ 8 =
25. 25.78 − 45 =
26. 26.27 + 29 =
27. 27.7 + ? = 10
28. 28.50% of ₹580 =
29. 29.What is the remainder when 53 is divided by 6?
30. 30.26 × 8 =
31. 31.122 − 86 =
32. 32.You buy a water bottle for ₹440 and pay with a ₹500 note. How much change do you get, in rupees?
33. 33.Double 46 =
34. 34.40 × 8 =
35. 35.212 ÷ 4 =
36. 36.19 children stand in rows of 4. How many full rows can they make?
37. 37.You buy a pencil box for ₹42 and a pen for ₹15. You pay with a ₹100 note. How much change do you get, in rupees?
38. 38.31 + ? = 100
39. 39.1020 − 983 =
40. 40.59 − 29 =

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