Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 493 · 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. 1.29 laddoos are packed in boxes of 3. How many laddoos are left over?
2. 2.46 + 6 =
3. 3.89 × 5 =
4. 4.58 − 32 =
5. 5.18 × 6 =
6. 6.13² =
7. 7.58 + 9 =
8. 8.75 − 19 =
9. 9.79 − 9 =
10. 10.22 × 8 =
11. 11.10% of ₹750 =
12. 12.506 − 489 =
13. 13.12² =
14. 14.46 children stand in rows of 9. How many full rows can they make?
15. 15.A train leaves at 4:20 and reaches the next city at 4:50. How many minutes is the journey?
16. 16.96 ÷ 4 =
17. 17.15 × 8 =
18. 18.21 × 4 =
19. 19.49 children stand in rows of 4. How many full rows can they make?
20. 20.49 − 9 =
21. 21.You buy a water bottle for ₹27 and a pen for ₹24. You pay with a ₹100 note. How much change do you get, in rupees?
22. 22.50% of ₹890 =
23. 23.87 − 65 =
24. 24.513 ÷ 9 =
25. 25.You buy a bag of mangoes for ₹37 and a pen for ₹20. You pay with a ₹100 note. How much change do you get, in rupees?
26. 26.24 + 31 =
27. 27.Best estimate of 12 × 29? (a) 30 (b) 300 (c) 3000
28. 28.84 − 42 =
29. 29.111 − 83 =
30. 30.311 − 285 =
31. 31.14² =
32. 32.42 × 9 =
33. 33.You buy a pencil box for ₹462 and pay with a ₹500 note. How much change do you get, in rupees?
34. 34.25 + 6 =
35. 35.52 − 31 =
36. 36.4 + ? = 10
37. 37.76 + ? = 100
38. 38.18² =
39. 39.208 ÷ 4 =
40. 40.28² =

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