Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 995 · 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. 1.2 + ? = 10
2. 2.Half of 62 =
3. 3.Best estimate of 39 × 34? (a) 120 (b) 1200 (c) 12000
4. 4.36 + 45 =
5. 5.588 ÷ 7 =
6. 6.96 ÷ 6 =
7. 7.Half of 158 =
8. 8.30 × 8 =
9. 9.35 + 6 =
10. 10.You buy a pencil box for ₹15 and pay with a ₹100 note. How much change do you get, in rupees?
11. 11.16 + 18 =
12. 12.A train leaves at 7:00 and reaches the next city at 10:00. How many minutes is the journey?
13. 13.24 − 9 =
14. 14.21 × 4 =
15. 15.63 ÷ 3 =
16. 16.39 × 8 =
17. 17.A film starts at 4:30 and ends at 7:15. How many minutes long is the film?
18. 18.10% of ₹140 =
19. 19.Double 57 =
20. 20.448 ÷ 8 =
21. 21.5% of ₹420 =
22. 22.576 ÷ 9 =
23. 23.94 × 6 =
24. 24.50% of ₹800 =
25. 25.290 ÷ 5 =
26. 26.Best estimate of 26 × 33? (a) 900 (b) 90 (c) 9000
27. 27.98 children stand in rows of 8. How many full rows can they make?
28. 28.41 + 9 =
29. 29.What is the remainder when 88 is divided by 6?
30. 30.86 + 16 =
31. 31.73 + 22 =
32. 32.A cricket match starts at 1:25 and the first innings ends at 2:55. How many minutes did the innings last?
33. 33.236 ÷ 4 =
34. 34.13 + 14 =
35. 35.You buy a storybook for ₹45 and a pen for ₹16. You pay with a ₹100 note. How much change do you get, in rupees?
36. 36.Double 91 =
37. 37.71 × 4 =
38. 38.288 ÷ 8 =
39. 39.17 + 16 =
40. 40.456 ÷ 6 =

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