Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 931 · 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. 1.828 ÷ 9 =
2. 2.What is the remainder when 17 is divided by 3?
3. 3.A train leaves at 8:55 and reaches the next city at 11:05. How many minutes is the journey?
4. 4.You buy a box of crayons for ₹45 and pay with a ₹100 note. How much change do you get, in rupees?
5. 5.30 + 31 =
6. 6.Best estimate of 533 + 856? (a) 1600 (b) 1200 (c) 1400
7. 7.7 + 6 =
8. 8.You buy a water bottle for ₹19 and a pen for ₹28. You pay with a ₹100 note. How much change do you get, in rupees?
9. 9.Half of 166 =
10. 10.36 × 8 =
11. 11.20 × 4 =
12. 12.9 + 4 =
13. 13.37 + 29 =
14. 14.A train leaves at 5:50 and reaches the next city at 6:45. How many minutes is the journey?
15. 15.227 − 182 =
16. 16.52 − 34 =
17. 17.94 × 7 =
18. 18.62 − 33 =
19. 19.33 + 23 =
20. 20.783 − 99 =
21. 21.11² =
22. 22.36 + 29 =
23. 23.10% of ₹780 =
24. 24.69 × 3 =
25. 25.A train leaves at 7:00 and reaches the next city at 8:20. How many minutes is the journey?
26. 26.148 ÷ 4 =
27. 27.Half of 42 =
28. 28.14² =
29. 29.Best estimate of 421 + 599? (a) 800 (b) 1000 (c) 1200
30. 30.A cricket match starts at 5:55 and the first innings ends at 7:25. How many minutes did the innings last?
31. 31.256 ÷ 8 =
32. 32.61 − 31 =
33. 33.54 − 41 =
34. 34.105 − 29 =
35. 35.50% of ₹610 =
36. 36.86 − 57 =
37. 37.21² =
38. 38.Half of 108 =
39. 39.46 × 7 =
40. 40.What is the remainder when 63 is divided by 8?

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