Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 104 · 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.Half of 54 =
2. 2.What is the remainder when 22 is divided by 3?
3. 3.327 − 297 =
4. 4.27 × 8 =
5. 5.25% of ₹280 =
6. 6.65 + 9 =
7. 7.82 + 22 =
8. 8.18 + 17 =
9. 9.27 + 28 =
10. 10.15 + 6 =
11. 11.65 × 8 =
12. 12.A train leaves at 4:45 and reaches the next city at 5:25. How many minutes is the journey?
13. 13.395 ÷ 5 =
14. 14.You buy a bag of mangoes for ₹31 and pay with a ₹100 note. How much change do you get, in rupees?
15. 15.61 − 17 =
16. 16.Best estimate of 544 + 167? (a) 700 (b) 900 (c) 500
17. 17.152 ÷ 8 =
18. 18.11² =
19. 19.Best estimate of 251 + 447? (a) 500 (b) 700 (c) 900
20. 20.51 + 31 =
21. 21.You buy a cricket ball for ₹453 and pay with a ₹500 note. How much change do you get, in rupees?
22. 22.39 × 4 =
23. 23.30 + 32 =
24. 24.22² =
25. 25.10% of ₹260 =
26. 26.You buy a bag of mangoes for ₹12 and a pen for ₹31. You pay with a ₹100 note. How much change do you get, in rupees?
27. 27.48 × 4 =
28. 28.112 ÷ 8 =
29. 29.144 ÷ 4 =
30. 30.113 − 76 =
31. 31.66 − 13 =
32. 32.Half of 76 =
33. 33.10 + 12 =
34. 34.5 + ? = 10
35. 35.Half of 78 =
36. 36.5% of ₹580 =
37. 37.56 + 5 =
38. 38.32 + 62 =
39. 39.44 − 19 =
40. 40.24 + 25 =

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