Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 377 · 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.You buy a notebook for ₹15 and a pen for ₹42. You pay with a ₹100 note. How much change do you get, in rupees?
2. 2.What is the remainder when 50 is divided by 4?
3. 3.A film starts at 4:30 and ends at 5:45. How many minutes long is the film?
4. 4.9 + 11 =
5. 5.880 − 99 =
6. 6.Double 72 =
7. 7.Best estimate of 46 × 46? (a) 25000 (b) 2500 (c) 250
8. 8.77 + 5 =
9. 9.9 + 7 =
10. 10.You buy a kite for ₹63 and pay with a ₹100 note. How much change do you get, in rupees?
11. 11.29 + 3 =
12. 12.6 + 5 =
13. 13.5% of ₹740 =
14. 14.Best estimate of 17 × 89? (a) 1800 (b) 18000 (c) 180
15. 15.Best estimate of 26 × 62? (a) 180 (b) 1800 (c) 18000
16. 16.82 − 57 =
17. 17.45 + 7 =
18. 18.Best estimate of 49 × 48? (a) 2500 (b) 250 (c) 25000
19. 19.63 − 19 =
20. 20.Best estimate of 244 + 152? (a) 200 (b) 400 (c) 600
21. 21.248 ÷ 8 =
22. 22.10 + 9 =
23. 23.172 ÷ 4 =
24. 24.50% of ₹250 =
25. 25.72 − 29 =
26. 26.70 + 9 =
27. 27.89 children stand in rows of 7. How many full rows can they make?
28. 28.27² =
29. 29.11² =
30. 30.19 × 4 =
31. 31.296 ÷ 8 =
32. 32.A film starts at 4:20 and ends at 7:00. How many minutes long is the film?
33. 33.88 + 5 =
34. 34.72 + 29 =
35. 35.21² =
36. 36.23 + 57 =
37. 37.32 × 8 =
38. 38.68 × 6 =
39. 39.226 − 183 =
40. 40.28 + 9 =

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