Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 883 · 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. 1.24 + ? = 100
2. 2.474 ÷ 6 =
3. 3.80 − 65 =
4. 4.23 × 8 =
5. 5.22 + 23 =
6. 6.22 + 63 =
7. 7.29 × 8 =
8. 8.12² =
9. 9.56 + 46 =
10. 10.112 ÷ 8 =
11. 11.81 + 21 =
12. 12.136 ÷ 4 =
13. 13.30 children stand in rows of 4. How many full rows can they make?
14. 14.61 laddoos are packed in boxes of 9. How many laddoos are left over?
15. 15.66 × 4 =
16. 16.78 + 5 =
17. 17.78 − 29 =
18. 18.59 − 19 =
19. 19.63 − 18 =
20. 20.128 ÷ 8 =
21. 21.You buy a cricket ball for ₹91 and pay with a ₹100 note. How much change do you get, in rupees?
22. 22.106 children stand in rows of 9. How many full rows can they make?
23. 23.You start your homework at 8:10 and finish at 10:40. How many minutes did you work?
24. 24.88 ÷ 8 =
25. 25.47 laddoos are packed in boxes of 9. How many laddoos are left over?
26. 26.127 − 82 =
27. 27.10% of ₹580 =
28. 28.13² =
29. 29.148 ÷ 4 =
30. 30.182 ÷ 7 =
31. 31.483 ÷ 7 =
32. 32.95 − 74 =
33. 33.85 + ? = 100
34. 34.69 − 27 =
35. 35.You buy a box of crayons for ₹37 and pay with a ₹100 note. How much change do you get, in rupees?
36. 36.You buy a kite for ₹23 and a pen for ₹39. You pay with a ₹100 note. How much change do you get, in rupees?
37. 37.65 − 51 =
38. 38.You start your homework at 6:55 and finish at 8:00. How many minutes did you work?
39. 39.You buy a box of crayons for ₹468 and pay with a ₹500 note. How much change do you get, in rupees?
40. 40.55 − 34 =

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