Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 170 · 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. 1.54 ÷ 3 =
2. 2.You buy a cricket ball for ₹26 and a pen for ₹17. You pay with a ₹100 note. How much change do you get, in rupees?
3. 3.101 − 73 =
4. 4.18² =
5. 5.168 ÷ 8 =
6. 6.What is the remainder when 56 is divided by 5?
7. 7.80 ÷ 4 =
8. 8.39 × 5 =
9. 9.46 × 4 =
10. 10.35 + 6 =
11. 11.2 + ? = 10
12. 12.7 + 9 =
13. 13.215 − 180 =
14. 14.30 + 31 =
15. 15.29² =
16. 16.28 × 4 =
17. 17.376 ÷ 4 =
18. 18.Best estimate of 41 × 16? (a) 8000 (b) 80 (c) 800
19. 19.27 + 7 =
20. 20.68 − 38 =
21. 21.276 ÷ 3 =
22. 22.56 + ? = 100
23. 23.You buy a storybook for ₹332 and pay with a ₹500 note. How much change do you get, in rupees?
24. 24.Best estimate of 625 + 685? (a) 1500 (b) 1100 (c) 1300
25. 25.240 ÷ 4 =
26. 26.93 − 55 =
27. 27.21² =
28. 28.14 × 4 =
29. 29.You buy a bag of mangoes for ₹33 and pay with a ₹100 note. How much change do you get, in rupees?
30. 30.73 − 62 =
31. 31.11 + ? = 100
32. 32.15 × 4 =
33. 33.176 ÷ 8 =
34. 34.50% of ₹60 =
35. 35.Best estimate of 235 + 310? (a) 700 (b) 500 (c) 300
36. 36.You buy a notebook for ₹287 and pay with a ₹500 note. How much change do you get, in rupees?
37. 37.75 × 8 =
38. 38.123 ÷ 3 =
39. 39.4 + ? = 10
40. 40.29 + 28 =

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