Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 332 · 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. 1.113 − 89 =
2. 2.296 ÷ 8 =
3. 3.77 + ? = 100
4. 4.Half of 90 =
5. 5.You buy a water bottle for ₹222 and pay with a ₹500 note. How much change do you get, in rupees?
6. 6.1014 − 976 =
7. 7.What is the remainder when 19 is divided by 4?
8. 8.35 × 8 =
9. 9.Half of 160 =
10. 10.10% of ₹470 =
11. 11.505 − 496 =
12. 12.You start your homework at 6:00 and finish at 6:40. How many minutes did you work?
13. 13.21² =
14. 14.Best estimate of 289 + 660? (a) 1200 (b) 800 (c) 1000
15. 15.322 − 278 =
16. 16.2 + ? = 10
17. 17.A train leaves at 5:05 and reaches the next city at 7:20. How many minutes is the journey?
18. 18.Best estimate of 720 + 303? (a) 1200 (b) 1000 (c) 800
19. 19.Double 64 =
20. 20.102 ÷ 3 =
21. 21.53 + ? = 100
22. 22.5 + ? = 10
23. 23.You buy a pencil box for ₹17 and pay with a ₹100 note. How much change do you get, in rupees?
24. 24.57 laddoos are packed in boxes of 8. How many laddoos are left over?
25. 25.92 − 18 =
26. 26.41 + 65 =
27. 27.18 × 8 =
28. 28.531 ÷ 9 =
29. 29.6 + 8 =
30. 30.23 + 25 =
31. 31.A train leaves at 4:40 and reaches the next city at 5:55. How many minutes is the journey?
32. 32.A film starts at 8:25 and ends at 10:05. How many minutes long is the film?
33. 33.12² =
34. 34.9 + ? = 10
35. 35.128 children stand in rows of 9. How many full rows can they make?
36. 36.17² =
37. 37.65 − 43 =
38. 38.60 × 4 =
39. 39.96 − 31 =
40. 40.Double 21 =

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