Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 36 · 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. 1.28 children stand in rows of 3. How many full rows can they make?
2. 2.Double 23 =
3. 3.27 + 41 =
4. 4.10% of ₹70 =
5. 5.207 − 197 =
6. 6.5 + ? = 10
7. 7.19 − 9 =
8. 8.A train leaves at 6:50 and reaches the next city at 9:55. How many minutes is the journey?
9. 9.You buy a kite for ₹34 and pay with a ₹100 note. How much change do you get, in rupees?
10. 10.16 × 9 =
11. 11.Best estimate of 744 + 246? (a) 900 (b) 1100 (c) 700
12. 12.52 + 35 =
13. 13.88 ÷ 8 =
14. 14.501 − 491 =
15. 15.136 ÷ 8 =
16. 16.86 + 43 =
17. 17.13² =
18. 18.You buy a bag of mangoes for ₹50 and pay with a ₹100 note. How much change do you get, in rupees?
19. 19.39 laddoos are packed in boxes of 9. How many laddoos are left over?
20. 20.8 + ? = 10
21. 21.65 + 7 =
22. 22.206 − 182 =
23. 23.A cricket match starts at 6:25 and the first innings ends at 8:10. How many minutes did the innings last?
24. 24.Best estimate of 758 + 279? (a) 1100 (b) 1300 (c) 900
25. 25.27 × 8 =
26. 26.Double 81 =
27. 27.212 ÷ 4 =
28. 28.224 ÷ 4 =
29. 29.23 − 9 =
30. 30.16² =
31. 31.3 + ? = 10
32. 32.31 + 63 =
33. 33.84 ÷ 4 =
34. 34.10% of ₹790 =
35. 35.83 − 43 =
36. 36.19² =
37. 37.20 + 22 =
38. 38.28² =
39. 39.6 + ? = 10
40. 40.16 + ? = 100

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