Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 226 · 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.Best estimate of 679 + 286? (a) 800 (b) 1200 (c) 1000
2. 2.A film starts at 6:55 and ends at 8:15. How many minutes long is the film?
3. 3.240 ÷ 8 =
4. 4.14 × 8 =
5. 5.9 + 2 =
6. 6.6 + ? = 10
7. 7.58 − 47 =
8. 8.10% of ₹890 =
9. 9.You buy a kite for ₹139 and pay with a ₹500 note. How much change do you get, in rupees?
10. 10.Best estimate of 94 × 31? (a) 2700 (b) 27000 (c) 270
11. 11.Best estimate of 24 × 74? (a) 1400 (b) 140 (c) 14000
12. 12.320 − 289 =
13. 13.248 ÷ 8 =
14. 14.208 ÷ 4 =
15. 15.Best estimate of 773 + 416? (a) 1000 (b) 1400 (c) 1200
16. 16.Double 48 =
17. 17.Half of 188 =
18. 18.8 + ? = 10
19. 19.18 + 19 =
20. 20.136 ÷ 8 =
21. 21.A train leaves at 2:55 and reaches the next city at 6:15. How many minutes is the journey?
22. 22.80 ÷ 4 =
23. 23.10% of ₹90 =
24. 24.What is the remainder when 14 is divided by 3?
25. 25.25% of ₹500 =
26. 26.You buy a water bottle for ₹42 and pay with a ₹100 note. How much change do you get, in rupees?
27. 27.7 + ? = 10
28. 28.Double 76 =
29. 29.67 − 51 =
30. 30.21 × 3 =
31. 31.9 + 11 =
32. 32.A film starts at 7:05 and ends at 8:45. How many minutes long is the film?
33. 33.13 + 12 =
34. 34.What is the remainder when 69 is divided by 5?
35. 35.68 laddoos are packed in boxes of 5. How many laddoos are left over?
36. 36.222 − 190 =
37. 37.Half of 26 =
38. 38.25% of ₹670 =
39. 39.15 + 8 =
40. 40.31 − 9 =

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