Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 592 · 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. 1.39 × 4 =
2. 2.51 + ? = 100
3. 3.12 + 13 =
4. 4.33 laddoos are packed in boxes of 4. How many laddoos are left over?
5. 5.86 − 71 =
6. 6.25² =
7. 7.84 − 49 =
8. 8.Best estimate of 329 + 204? (a) 700 (b) 300 (c) 500
9. 9.81 − 46 =
10. 10.Best estimate of 253 + 551? (a) 900 (b) 1100 (c) 700
11. 11.What is the remainder when 54 is divided by 5?
12. 12.Best estimate of 17 × 28? (a) 600 (b) 6000 (c) 60
13. 13.14² =
14. 14.43 − 19 =
15. 15.Half of 124 =
16. 16.17² =
17. 17.61 + 82 =
18. 18.10% of ₹800 =
19. 19.Half of 82 =
20. 20.Best estimate of 49 × 97? (a) 500 (b) 50000 (c) 5000
21. 21.30 + 32 =
22. 22.23 + 25 =
23. 23.93 × 9 =
24. 24.240 ÷ 8 =
25. 25.24 × 8 =
26. 26.441 ÷ 7 =
27. 27.You buy a bag of mangoes for ₹38 and a pen for ₹25. You pay with a ₹100 note. How much change do you get, in rupees?
28. 28.What is the remainder when 88 is divided by 7?
29. 29.315 ÷ 9 =
30. 30.You buy a water bottle for ₹95 and pay with a ₹100 note. How much change do you get, in rupees?
31. 31.35 + 6 =
32. 32.You buy a box of crayons for ₹337 and pay with a ₹500 note. How much change do you get, in rupees?
33. 33.50 laddoos are packed in boxes of 7. How many laddoos are left over?
34. 34.A train leaves at 1:15 and reaches the next city at 2:30. How many minutes is the journey?
35. 35.228 ÷ 4 =
36. 36.50% of ₹290 =
37. 37.56 − 40 =
38. 38.1 + ? = 10
39. 39.Best estimate of 56 × 36? (a) 24000 (b) 2400 (c) 240
40. 40.Half of 164 =

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