Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 404 · 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. 1.64 ÷ 4 =
2. 2.Best estimate of 70 × 19? (a) 14000 (b) 140 (c) 1400
3. 3.26 × 7 =
4. 4.You buy a storybook for ₹170 and pay with a ₹500 note. How much change do you get, in rupees?
5. 5.74 − 43 =
6. 6.145 ÷ 5 =
7. 7.35 + 53 =
8. 8.A train leaves at 1:45 and reaches the next city at 3:40. How many minutes is the journey?
9. 9.Best estimate of 134 + 300? (a) 600 (b) 200 (c) 400
10. 10.11² =
11. 11.What is the remainder when 37 is divided by 8?
12. 12.89 + 8 =
13. 13.84 − 19 =
14. 14.Double 21 =
15. 15.9 + 10 =
16. 16.396 ÷ 6 =
17. 17.5% of ₹120 =
18. 18.A train leaves at 1:00 and reaches the next city at 4:15. How many minutes is the journey?
19. 19.44 × 4 =
20. 20.320 ÷ 8 =
21. 21.129 ÷ 3 =
22. 22.Best estimate of 92 × 60? (a) 54000 (b) 540 (c) 5400
23. 23.Best estimate of 26 × 68? (a) 2100 (b) 210 (c) 21000
24. 24.74 − 58 =
25. 25.83 + 83 =
26. 26.46 + ? = 100
27. 27.You buy a cricket ball for ₹22 and a pen for ₹40. You pay with a ₹100 note. How much change do you get, in rupees?
28. 28.50% of ₹260 =
29. 29.A train leaves at 3:50 and reaches the next city at 6:10. How many minutes is the journey?
30. 30.227 − 187 =
31. 31.13 + 15 =
32. 32.93 − 53 =
33. 33.462 ÷ 6 =
34. 34.33 × 8 =
35. 35.You buy a cricket ball for ₹11 and a pen for ₹22. You pay with a ₹100 note. How much change do you get, in rupees?
36. 36.17 + 18 =
37. 37.87 + 42 =
38. 38.10% of ₹60 =
39. 39.255 ÷ 5 =
40. 40.304 ÷ 8 =

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