Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 156 · 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.Double 36 =
2. 2.26² =
3. 3.24 laddoos are packed in boxes of 5. How many laddoos are left over?
4. 4.5% of ₹280 =
5. 5.1022 − 998 =
6. 6.19 + 18 =
7. 7.12 + 29 =
8. 8.23 + 25 =
9. 9.8 + 10 =
10. 10.You buy a pencil box for ₹22 and a pen for ₹21. You pay with a ₹100 note. How much change do you get, in rupees?
11. 11.26 + 28 =
12. 12.22 + 41 =
13. 13.You buy a pencil box for ₹38 and a pen for ₹27. You pay with a ₹100 note. How much change do you get, in rupees?
14. 14.80 + 55 =
15. 15.26 + 27 =
16. 16.A train leaves at 2:15 and reaches the next city at 2:40. How many minutes is the journey?
17. 17.66 − 29 =
18. 18.152 ÷ 4 =
19. 19.You buy a notebook for ₹44 and a pen for ₹34. You pay with a ₹100 note. How much change do you get, in rupees?
20. 20.67 + 6 =
21. 21.76 + ? = 100
22. 22.49 children stand in rows of 5. How many full rows can they make?
23. 23.15 × 4 =
24. 24.10% of ₹530 =
25. 25.You buy a cricket ball for ₹23 and a pen for ₹14. You pay with a ₹100 note. How much change do you get, in rupees?
26. 26.28 + 8 =
27. 27.You start your homework at 6:25 and finish at 6:50. How many minutes did you work?
28. 28.128 ÷ 8 =
29. 29.21² =
30. 30.212 − 191 =
31. 31.16 + 7 =
32. 32.62 × 6 =
33. 33.5% of ₹180 =
34. 34.41 + ? = 100
35. 35.7 + 7 =
36. 36.28² =
37. 37.What is the remainder when 108 is divided by 8?
38. 38.81 × 4 =
39. 39.272 ÷ 8 =
40. 40.17² =

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