Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 748 · 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. 1.76 + 14 =
2. 2.Best estimate of 56 × 61? (a) 36000 (b) 3600 (c) 360
3. 3.375 ÷ 5 =
4. 4.You buy a cricket ball for ₹19 and a pen for ₹13. You pay with a ₹100 note. How much change do you get, in rupees?
5. 5.A train leaves at 7:50 and reaches the next city at 10:40. How many minutes is the journey?
6. 6.53 × 4 =
7. 7.Half of 184 =
8. 8.55 − 29 =
9. 9.You start your homework at 1:05 and finish at 2:30. How many minutes did you work?
10. 10.7 + ? = 10
11. 11.20 + 21 =
12. 12.48 + 59 =
13. 13.80 + 12 =
14. 14.7 + 8 =
15. 15.Best estimate of 623 + 415? (a) 1000 (b) 800 (c) 1200
16. 16.11 + ? = 100
17. 17.227 − 192 =
18. 18.A film starts at 2:05 and ends at 2:50. How many minutes long is the film?
19. 19.224 ÷ 4 =
20. 20.80 − 49 =
21. 21.184 ÷ 8 =
22. 22.Double 59 =
23. 23.Half of 52 =
24. 24.196 ÷ 7 =
25. 25.33 + 19 =
26. 26.21 + 22 =
27. 27.You start your homework at 3:50 and finish at 5:35. How many minutes did you work?
28. 28.55 + 64 =
29. 29.86 − 73 =
30. 30.107 laddoos are packed in boxes of 8. How many laddoos are left over?
31. 31.What is the remainder when 38 is divided by 4?
32. 32.5 + 8 =
33. 33.75 − 55 =
34. 34.28 + 22 =
35. 35.66 + 5 =
36. 36.327 − 298 =
37. 37.280 ÷ 8 =
38. 38.5% of ₹420 =
39. 39.124 − 95 =
40. 40.29² =

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