Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 76 · 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. 1.25% of ₹240 =
2. 2.3 + ? = 10
3. 3.12 + 13 =
4. 4.5% of ₹280 =
5. 5.116 ÷ 4 =
6. 6.A train leaves at 6:50 and reaches the next city at 8:00. How many minutes is the journey?
7. 7.208 ÷ 8 =
8. 8.Half of 30 =
9. 9.You buy a kite for ₹494 and pay with a ₹500 note. How much change do you get, in rupees?
10. 10.93 × 5 =
11. 11.You buy a cricket ball for ₹443 and pay with a ₹500 note. How much change do you get, in rupees?
12. 12.25% of ₹310 =
13. 13.You buy a bag of mangoes for ₹26 and a pen for ₹36. You pay with a ₹100 note. How much change do you get, in rupees?
14. 14.16 + ? = 100
15. 15.136 ÷ 8 =
16. 16.66 + 57 =
17. 17.313 − 285 =
18. 18.You buy a kite for ₹314 and pay with a ₹500 note. How much change do you get, in rupees?
19. 19.11² =
20. 20.55 − 35 =
21. 21.17 + 19 =
22. 22.You buy a bag of mangoes for ₹117 and pay with a ₹500 note. How much change do you get, in rupees?
23. 23.You buy a box of crayons for ₹37 and a pen for ₹19. You pay with a ₹100 note. How much change do you get, in rupees?
24. 24.Best estimate of 44 × 39? (a) 1600 (b) 160 (c) 16000
25. 25.26 + 27 =
26. 26.Half of 188 =
27. 27.50% of ₹230 =
28. 28.14² =
29. 29.215 − 193 =
30. 30.57 − 45 =
31. 31.76 × 6 =
32. 32.5% of ₹900 =
33. 33.12 × 8 =
34. 34.315 − 292 =
35. 35.50 laddoos are packed in boxes of 4. How many laddoos are left over?
36. 36.37 + 5 =
37. 37.What is the remainder when 71 is divided by 8?
38. 38.79 − 67 =
39. 39.Best estimate of 19 × 56? (a) 12000 (b) 1200 (c) 120
40. 40.76 × 5 =

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