Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 346 · 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. 1.565 + 99 =
2. 2.22 laddoos are packed in boxes of 4. How many laddoos are left over?
3. 3.A cricket match starts at 7:10 and the first innings ends at 9:15. How many minutes did the innings last?
4. 4.846 ÷ 9 =
5. 5.58 + 4 =
6. 6.57 + 8 =
7. 7.78 + 7 =
8. 8.29² =
9. 9.97 − 71 =
10. 10.83 × 4 =
11. 11.29 × 8 =
12. 12.152 ÷ 8 =
13. 13.Best estimate of 24 × 56? (a) 120 (b) 12000 (c) 1200
14. 14.46 children stand in rows of 5. How many full rows can they make?
15. 15.What is the remainder when 18 is divided by 4?
16. 16.90 ÷ 5 =
17. 17.305 − 292 =
18. 18.You buy a kite for ₹41 and a pen for ₹27. You pay with a ₹100 note. How much change do you get, in rupees?
19. 19.8 + 3 =
20. 20.89 + 61 =
21. 21.You buy a bag of mangoes for ₹60 and pay with a ₹100 note. How much change do you get, in rupees?
22. 22.55 × 4 =
23. 23.48 × 3 =
24. 24.79 + 29 =
25. 25.51 ÷ 3 =
26. 26.You buy a box of crayons for ₹44 and a pen for ₹42. You pay with a ₹100 note. How much change do you get, in rupees?
27. 27.59 − 19 =
28. 28.67 + 4 =
29. 29.58 − 41 =
30. 30.10 + 12 =
31. 31.22 × 4 =
32. 32.61 + 26 =
33. 33.57 + 16 =
34. 34.15² =
35. 35.71 × 4 =
36. 36.1 + ? = 10
37. 37.You start your homework at 8:10 and finish at 10:25. How many minutes did you work?
38. 38.75 + 8 =
39. 39.107 − 87 =
40. 40.39 children stand in rows of 6. How many full rows can they make?

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