Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 913 · 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. 1.95 − 53 =
2. 2.17 + 19 =
3. 3.41 × 7 =
4. 4.What is the remainder when 30 is divided by 4?
5. 5.You start your homework at 8:00 and finish at 10:50. How many minutes did you work?
6. 6.A film starts at 8:05 and ends at 9:15. How many minutes long is the film?
7. 7.72 − 12 =
8. 8.92 − 63 =
9. 9.50% of ₹630 =
10. 10.42 + ? = 100
11. 11.99 − 70 =
12. 12.You buy a bag of mangoes for ₹381 and pay with a ₹500 note. How much change do you get, in rupees?
13. 13.Best estimate of 68 × 68? (a) 49000 (b) 490 (c) 4900
14. 14.13 + 12 =
15. 15.272 ÷ 8 =
16. 16.50 + 55 =
17. 17.37 + ? = 100
18. 18.A train leaves at 4:35 and reaches the next city at 6:25. How many minutes is the journey?
19. 19.What is the remainder when 40 is divided by 9?
20. 20.13 + 14 =
21. 21.You buy a water bottle for ₹51 and pay with a ₹100 note. How much change do you get, in rupees?
22. 22.42 + 9 =
23. 23.175 ÷ 7 =
24. 24.98 − 66 =
25. 25.51 + 44 =
26. 26.29 + 77 =
27. 27.18 + 17 =
28. 28.405 ÷ 9 =
29. 29.19 + 18 =
30. 30.29 + 4 =
31. 31.217 − 198 =
32. 32.Double 59 =
33. 33.You start your homework at 2:15 and finish at 5:20. How many minutes did you work?
34. 34.303 − 281 =
35. 35.168 ÷ 8 =
36. 36.45 + 9 =
37. 37.Double 74 =
38. 38.184 ÷ 8 =
39. 39.A train leaves at 5:10 and reaches the next city at 7:50. How many minutes is the journey?
40. 40.Half of 112 =

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