Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 903 · 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. 1.372 ÷ 4 =
2. 2.3 + ? = 10
3. 3.364 ÷ 4 =
4. 4.328 − 284 =
5. 5.23 × 4 =
6. 6.21² =
7. 7.78 ÷ 3 =
8. 8.A train leaves at 2:45 and reaches the next city at 4:55. How many minutes is the journey?
9. 9.83 − 29 =
10. 10.75 + 9 =
11. 11.Best estimate of 22 × 33? (a) 600 (b) 6000 (c) 60
12. 12.58 + ? = 100
13. 13.47 + 29 =
14. 14.24² =
15. 15.A train leaves at 4:25 and reaches the next city at 6:30. How many minutes is the journey?
16. 16.You buy a cricket ball for ₹25 and a pen for ₹42. You pay with a ₹100 note. How much change do you get, in rupees?
17. 17.8 + 9 =
18. 18.You buy a notebook for ₹273 and pay with a ₹500 note. How much change do you get, in rupees?
19. 19.5% of ₹430 =
20. 20.1007 − 998 =
21. 21.A train leaves at 3:05 and reaches the next city at 4:30. How many minutes is the journey?
22. 22.19² =
23. 23.15² =
24. 24.765 ÷ 9 =
25. 25.14 × 4 =
26. 26.80 ÷ 5 =
27. 27.62 × 3 =
28. 28.55 + 19 =
29. 29.39 × 8 =
30. 30.56 − 29 =
31. 31.12 × 4 =
32. 32.66 − 42 =
33. 33.144 ÷ 8 =
34. 34.528 ÷ 6 =
35. 35.80 + 29 =
36. 36.19 + 7 =
37. 37.50% of ₹460 =
38. 38.A train leaves at 3:05 and reaches the next city at 5:25. How many minutes is the journey?
39. 39.26 + ? = 100
40. 40.44 × 9 =

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