Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 367 · 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. 1.67 + 7 =
2. 2.You buy a kite for ₹32 and pay with a ₹100 note. How much change do you get, in rupees?
3. 3.25 children stand in rows of 4. How many full rows can they make?
4. 4.What is the remainder when 28 is divided by 5?
5. 5.38 × 5 =
6. 6.A film starts at 4:45 and ends at 5:35. How many minutes long is the film?
7. 7.232 ÷ 4 =
8. 8.64 + ? = 100
9. 9.18² =
10. 10.13 + ? = 100
11. 11.65 + 9 =
12. 12.69 − 39 =
13. 13.33 × 8 =
14. 14.2 + ? = 10
15. 15.99 − 66 =
16. 16.What is the remainder when 109 is divided by 9?
17. 17.Double 83 =
18. 18.53 − 28 =
19. 19.49 × 4 =
20. 20.41 + 77 =
21. 21.55 + ? = 100
22. 22.31 − 9 =
23. 23.What is the remainder when 85 is divided by 9?
24. 24.Double 74 =
25. 25.64 + 25 =
26. 26.217 − 192 =
27. 27.You buy a box of crayons for ₹457 and pay with a ₹500 note. How much change do you get, in rupees?
28. 28.88 − 57 =
29. 29.88 − 9 =
30. 30.25² =
31. 31.16² =
32. 32.8 + ? = 10
33. 33.You buy a bag of mangoes for ₹40 and pay with a ₹100 note. How much change do you get, in rupees?
34. 34.45 + 7 =
35. 35.11² =
36. 36.430 ÷ 5 =
37. 37.Double 96 =
38. 38.46 + 36 =
39. 39.440 ÷ 8 =
40. 40.190 ÷ 5 =

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