Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 844 · 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.A film starts at 3:30 and ends at 5:30. How many minutes long is the film?
2. 2.50% of ₹510 =
3. 3.A film starts at 2:00 and ends at 2:45. How many minutes long is the film?
4. 4.11² =
5. 5.You buy a pencil box for ₹64 and pay with a ₹100 note. How much change do you get, in rupees?
6. 6.23 + 9 =
7. 7.213 − 184 =
8. 8.60 × 4 =
9. 9.65 + 9 =
10. 10.25% of ₹830 =
11. 11.75 + ? = 100
12. 12.8 + 5 =
13. 13.91 × 3 =
14. 14.16 children stand in rows of 3. How many full rows can they make?
15. 15.41 × 4 =
16. 16.18 + 17 =
17. 17.Best estimate of 36 × 39? (a) 160 (b) 16000 (c) 1600
18. 18.67 − 35 =
19. 19.64 − 9 =
20. 20.21 + 23 =
21. 21.22 + 41 =
22. 22.529 − 478 =
23. 23.85 − 68 =
24. 24.Double 35 =
25. 25.A cricket match starts at 2:05 and the first innings ends at 3:55. How many minutes did the innings last?
26. 26.39 × 8 =
27. 27.95 children stand in rows of 7. How many full rows can they make?
28. 28.24 + 35 =
29. 29.You buy a cricket ball for ₹25 and pay with a ₹100 note. How much change do you get, in rupees?
30. 30.32 × 8 =
31. 31.77 + 7 =
32. 32.234 ÷ 3 =
33. 33.5% of ₹440 =
34. 34.62 + 19 =
35. 35.176 ÷ 4 =
36. 36.Best estimate of 304 + 657? (a) 1000 (b) 800 (c) 1200
37. 37.122 children stand in rows of 8. How many full rows can they make?
38. 38.192 ÷ 4 =
39. 39.20 + 21 =
40. 40.10% of ₹200 =

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