Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 162 · 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.You buy a pencil box for ₹467 and pay with a ₹500 note. How much change do you get, in rupees?
2. 2.11² =
3. 3.35 + 7 =
4. 4.6 + 7 =
5. 5.86 + ? = 100
6. 6.114 ÷ 6 =
7. 7.21 + 22 =
8. 8.26 + 28 =
9. 9.307 + 99 =
10. 10.Best estimate of 34 × 29? (a) 9000 (b) 90 (c) 900
11. 11.21² =
12. 12.17 + 5 =
13. 13.60 ÷ 4 =
14. 14.192 ÷ 8 =
15. 15.What is the remainder when 54 is divided by 7?
16. 16.85 + 6 =
17. 17.Double 22 =
18. 18.A train leaves at 3:10 and reaches the next city at 6:10. How many minutes is the journey?
19. 19.28 + 39 =
20. 20.You buy a box of crayons for ₹15 and pay with a ₹100 note. How much change do you get, in rupees?
21. 21.589 + 99 =
22. 22.108 ÷ 4 =
23. 23.What is the remainder when 19 is divided by 4?
24. 24.65 laddoos are packed in boxes of 9. How many laddoos are left over?
25. 25.You buy a kite for ₹455 and pay with a ₹500 note. How much change do you get, in rupees?
26. 26.118 − 88 =
27. 27.26 children stand in rows of 3. How many full rows can they make?
28. 28.50% of ₹810 =
29. 29.38 − 9 =
30. 30.168 ÷ 8 =
31. 31.87 + 6 =
32. 32.Half of 130 =
33. 33.31 + 54 =
34. 34.156 ÷ 4 =
35. 35.225 ÷ 3 =
36. 36.25% of ₹880 =
37. 37.50% of ₹620 =
38. 38.41 × 3 =
39. 39.Best estimate of 704 + 657? (a) 1200 (b) 1400 (c) 1600
40. 40.82 + 35 =

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