Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 881 · 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. 1.48 + 5 =
2. 2.64 ÷ 4 =
3. 3.28 × 7 =
4. 4.37 × 4 =
5. 5.111 − 95 =
6. 6.620 + 99 =
7. 7.39 + 7 =
8. 8.36 + 81 =
9. 9.248 ÷ 8 =
10. 10.45 × 4 =
11. 11.196 ÷ 4 =
12. 12.You buy a water bottle for ₹38 and a pen for ₹14. You pay with a ₹100 note. How much change do you get, in rupees?
13. 13.50% of ₹410 =
14. 14.23² =
15. 15.44 + ? = 100
16. 16.36 × 4 =
17. 17.What is the remainder when 32 is divided by 5?
18. 18.50% of ₹150 =
19. 19.You buy a bag of mangoes for ₹112 and pay with a ₹500 note. How much change do you get, in rupees?
20. 20.30 + 31 =
21. 21.94 laddoos are packed in boxes of 7. How many laddoos are left over?
22. 22.6 + ? = 10
23. 23.16² =
24. 24.301 ÷ 7 =
25. 25.235 ÷ 5 =
26. 26.76 + 5 =
27. 27.71 children stand in rows of 5. How many full rows can they make?
28. 28.122 − 94 =
29. 29.18 − 9 =
30. 30.54 + 29 =
31. 31.Best estimate of 69 × 68? (a) 49000 (b) 4900 (c) 490
32. 32.61 × 4 =
33. 33.30 + 32 =
34. 34.60 − 13 =
35. 35.168 ÷ 8 =
36. 36.120 children stand in rows of 9. How many full rows can they make?
37. 37.Half of 54 =
38. 38.You buy a notebook for ₹12 and pay with a ₹100 note. How much change do you get, in rupees?
39. 39.23 + 25 =
40. 40.Best estimate of 21 × 66? (a) 14000 (b) 1400 (c) 140

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