Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 186 · 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. 1.50% of ₹700 =
2. 2.Half of 146 =
3. 3.218 − 196 =
4. 4.50 − 29 =
5. 5.74 − 29 =
6. 6.47 + 5 =
7. 7.58 + 85 =
8. 8.What is the remainder when 38 is divided by 4?
9. 9.36 children stand in rows of 5. How many full rows can they make?
10. 10.30 + 32 =
11. 11.30 + 29 =
12. 12.2 + ? = 10
13. 13.58 + 88 =
14. 14.Best estimate of 67 × 18? (a) 14000 (b) 140 (c) 1400
15. 15.17² =
16. 16.11² =
17. 17.288 ÷ 8 =
18. 18.6 + 7 =
19. 19.23² =
20. 20.5% of ₹320 =
21. 21.216 + 99 =
22. 22.23 + 25 =
23. 23.22 + ? = 100
24. 24.What is the remainder when 62 is divided by 4?
25. 25.51 children stand in rows of 5. How many full rows can they make?
26. 26.24 × 5 =
27. 27.You buy a bag of mangoes for ₹19 and a pen for ₹32. You pay with a ₹100 note. How much change do you get, in rupees?
28. 28.37 × 8 =
29. 29.49 × 7 =
30. 30.27 × 4 =
31. 31.Best estimate of 531 + 252? (a) 1000 (b) 600 (c) 800
32. 32.You start your homework at 5:40 and finish at 6:40. How many minutes did you work?
33. 33.32 × 4 =
34. 34.A train leaves at 3:05 and reaches the next city at 5:35. How many minutes is the journey?
35. 35.91 − 58 =
36. 36.13 + 14 =
37. 37.A train leaves at 2:30 and reaches the next city at 3:55. How many minutes is the journey?
38. 38.12 × 4 =
39. 39.66 + 5 =
40. 40.47 + 4 =

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