Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 967 · 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 − 66 =
2. 2.268 + 99 =
3. 3.A train leaves at 2:35 and reaches the next city at 3:35. How many minutes is the journey?
4. 4.What is the remainder when 86 is divided by 7?
5. 5.50% of ₹360 =
6. 6.Best estimate of 20 × 57? (a) 12000 (b) 1200 (c) 120
7. 7.248 ÷ 8 =
8. 8.104 ÷ 4 =
9. 9.220 − 186 =
10. 10.16 + 15 =
11. 11.32 × 4 =
12. 12.230 ÷ 5 =
13. 13.312 ÷ 8 =
14. 14.5% of ₹90 =
15. 15.57 ÷ 3 =
16. 16.58 children stand in rows of 9. How many full rows can they make?
17. 17.43 + ? = 100
18. 18.You buy a notebook for ₹74 and pay with a ₹100 note. How much change do you get, in rupees?
19. 19.76 ÷ 4 =
20. 20.Half of 56 =
21. 21.Best estimate of 841 + 370? (a) 1200 (b) 1000 (c) 1400
22. 22.Best estimate of 84 × 76? (a) 64000 (b) 6400 (c) 640
23. 23.You buy a kite for ₹86 and pay with a ₹100 note. How much change do you get, in rupees?
24. 24.14 × 4 =
25. 25.Best estimate of 84 × 87? (a) 7200 (b) 720 (c) 72000
26. 26.You buy a water bottle for ₹186 and pay with a ₹500 note. How much change do you get, in rupees?
27. 27.79 − 68 =
28. 28.77 − 34 =
29. 29.37 + 6 =
30. 30.232 ÷ 4 =
31. 31.24 + 74 =
32. 32.9 + 11 =
33. 33.A film starts at 4:40 and ends at 6:40. How many minutes long is the film?
34. 34.518 − 487 =
35. 35.114 ÷ 6 =
36. 36.29 × 9 =
37. 37.30 + ? = 100
38. 38.120 ÷ 8 =
39. 39.Best estimate of 863 + 706? (a) 1600 (b) 1800 (c) 1400
40. 40.38 × 4 =

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