Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 873 · 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 + 51 =
2. 2.130 − 96 =
3. 3.304 ÷ 8 =
4. 4.What is the remainder when 26 is divided by 3?
5. 5.19 + 21 =
6. 6.19² =
7. 7.74 + ? = 100
8. 8.89 − 74 =
9. 9.738 + 99 =
10. 10.56 + 85 =
11. 11.50% of ₹530 =
12. 12.192 ÷ 4 =
13. 13.72 − 28 =
14. 14.A train leaves at 4:25 and reaches the next city at 6:00. How many minutes is the journey?
15. 15.61 − 48 =
16. 16.49 × 4 =
17. 17.10% of ₹190 =
18. 18.5 + ? = 10
19. 19.16 × 6 =
20. 20.236 ÷ 4 =
21. 21.Half of 92 =
22. 22.Half of 48 =
23. 23.210 ÷ 6 =
24. 24.Best estimate of 193 + 528? (a) 500 (b) 700 (c) 900
25. 25.A film starts at 8:05 and ends at 9:45. How many minutes long is the film?
26. 26.You start your homework at 3:10 and finish at 4:50. How many minutes did you work?
27. 27.110 − 72 =
28. 28.You start your homework at 6:50 and finish at 8:50. How many minutes did you work?
29. 29.27² =
30. 30.47 + 29 =
31. 31.76 laddoos are packed in boxes of 6. How many laddoos are left over?
32. 32.188 ÷ 4 =
33. 33.You buy a water bottle for ₹267 and pay with a ₹500 note. How much change do you get, in rupees?
34. 34.36 × 8 =
35. 35.Double 92 =
36. 36.You buy a notebook for ₹128 and pay with a ₹500 note. How much change do you get, in rupees?
37. 37.195 − 99 =
38. 38.53 − 18 =
39. 39.Best estimate of 84 × 64? (a) 4800 (b) 48000 (c) 480
40. 40.29 + 28 =

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