Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 955 · 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.What is the remainder when 112 is divided by 9?
2. 2.23² =
3. 3.You buy a kite for ₹18 and a pen for ₹25. You pay with a ₹100 note. How much change do you get, in rupees?
4. 4.Double 53 =
5. 5.A film starts at 2:35 and ends at 4:10. How many minutes long is the film?
6. 6.A film starts at 7:20 and ends at 8:10. How many minutes long is the film?
7. 7.Half of 130 =
8. 8.208 ÷ 4 =
9. 9.88 − 74 =
10. 10.You start your homework at 2:20 and finish at 2:45. How many minutes did you work?
11. 11.Double 72 =
12. 12.778 − 99 =
13. 13.20 + 21 =
14. 14.21² =
15. 15.27 + 21 =
16. 16.Best estimate of 402 + 633? (a) 800 (b) 1000 (c) 1200
17. 17.82 − 58 =
18. 18.14 + 13 =
19. 19.Double 44 =
20. 20.You start your homework at 3:40 and finish at 6:25. How many minutes did you work?
21. 21.71 children stand in rows of 5. How many full rows can they make?
22. 22.12² =
23. 23.41 + 9 =
24. 24.24² =
25. 25.Best estimate of 53 × 60? (a) 30000 (b) 300 (c) 3000
26. 26.50% of ₹890 =
27. 27.76 − 15 =
28. 28.You buy a water bottle for ₹31 and pay with a ₹100 note. How much change do you get, in rupees?
29. 29.44 children stand in rows of 3. How many full rows can they make?
30. 30.106 − 86 =
31. 31.15² =
32. 32.38 + 3 =
33. 33.11 + 13 =
34. 34.27² =
35. 35.A film starts at 4:45 and ends at 6:35. How many minutes long is the film?
36. 36.87 − 32 =
37. 37.5% of ₹760 =
38. 38.Half of 158 =
39. 39.Best estimate of 151 + 619? (a) 800 (b) 600 (c) 1000
40. 40.408 − 99 =

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