Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 595 · 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.Best estimate of 174 + 636? (a) 1000 (b) 600 (c) 800
2. 2.48 ÷ 4 =
3. 3.You buy a cricket ball for ₹96 and pay with a ₹100 note. How much change do you get, in rupees?
4. 4.59 − 9 =
5. 5.10% of ₹310 =
6. 6.97 × 6 =
7. 7.19 children stand in rows of 3. How many full rows can they make?
8. 8.Best estimate of 251 + 338? (a) 800 (b) 400 (c) 600
9. 9.88 + ? = 100
10. 10.74 + 73 =
11. 11.15 + 6 =
12. 12.637 ÷ 7 =
13. 13.You buy a kite for ₹20 and a pen for ₹33. You pay with a ₹100 note. How much change do you get, in rupees?
14. 14.1009 − 987 =
15. 15.What is the remainder when 52 is divided by 7?
16. 16.6 + ? = 10
17. 17.94 − 25 =
18. 18.54 + 26 =
19. 19.A train leaves at 1:20 and reaches the next city at 2:20. How many minutes is the journey?
20. 20.85 × 7 =
21. 21.Best estimate of 641 + 720? (a) 1100 (b) 1300 (c) 1500
22. 22.24² =
23. 23.You buy a kite for ₹36 and a pen for ₹35. You pay with a ₹100 note. How much change do you get, in rupees?
24. 24.10 + 9 =
25. 25.You buy a notebook for ₹107 and pay with a ₹500 note. How much change do you get, in rupees?
26. 26.28 + 27 =
27. 27.73 − 51 =
28. 28.53 × 4 =
29. 29.1010 − 993 =
30. 30.Best estimate of 704 + 131? (a) 1000 (b) 600 (c) 800
31. 31.50% of ₹900 =
32. 32.1003 − 989 =
33. 33.You buy a box of crayons for ₹78 and pay with a ₹100 note. How much change do you get, in rupees?
34. 34.30 + 67 =
35. 35.688 ÷ 8 =
36. 36.11 + ? = 100
37. 37.39 + 29 =
38. 38.30 + 29 =
39. 39.25% of ₹770 =
40. 40.52 + 18 =

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