Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 495 · 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 train leaves at 7:30 and reaches the next city at 9:10. How many minutes is the journey?
2. 2.16² =
3. 3.50% of ₹140 =
4. 4.25% of ₹900 =
5. 5.18 + 19 =
6. 6.42 × 4 =
7. 7.62 + 19 =
8. 8.503 − 497 =
9. 9.67 − 29 =
10. 10.371 ÷ 7 =
11. 11.54 × 4 =
12. 12.71 − 34 =
13. 13.64 + 19 =
14. 14.23² =
15. 15.Best estimate of 21 × 30? (a) 60 (b) 6000 (c) 600
16. 16.43 × 4 =
17. 17.19² =
18. 18.19 + 7 =
19. 19.A train leaves at 7:35 and reaches the next city at 10:40. How many minutes is the journey?
20. 20.9 + ? = 10
21. 21.16 + 17 =
22. 22.128 ÷ 8 =
23. 23.45 + 7 =
24. 24.204 ÷ 4 =
25. 25.34 laddoos are packed in boxes of 4. How many laddoos are left over?
26. 26.280 ÷ 8 =
27. 27.1 + ? = 10
28. 28.46 + 6 =
29. 29.You buy a notebook for ₹74 and pay with a ₹100 note. How much change do you get, in rupees?
30. 30.25 laddoos are packed in boxes of 4. How many laddoos are left over?
31. 31.38 + ? = 100
32. 32.1001 − 976 =
33. 33.A train leaves at 5:20 and reaches the next city at 8:30. How many minutes is the journey?
34. 34.180 ÷ 4 =
35. 35.You buy a notebook for ₹66 and pay with a ₹100 note. How much change do you get, in rupees?
36. 36.19 + 9 =
37. 37.24 + 25 =
38. 38.22 × 4 =
39. 39.Half of 38 =
40. 40.29 + 29 =

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