Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 650 · 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.What is the remainder when 23 is divided by 4?
2. 2.295 ÷ 5 =
3. 3.94 − 21 =
4. 4.48 + 3 =
5. 5.11² =
6. 6.69 + 5 =
7. 7.256 ÷ 8 =
8. 8.What is the remainder when 53 is divided by 6?
9. 9.15 + 29 =
10. 10.Best estimate of 512 + 638? (a) 1300 (b) 900 (c) 1100
11. 11.Double 33 =
12. 12.You buy a cricket ball for ₹219 and pay with a ₹500 note. How much change do you get, in rupees?
13. 13.You buy a cricket ball for ₹126 and pay with a ₹500 note. How much change do you get, in rupees?
14. 14.24² =
15. 15.44 children stand in rows of 5. How many full rows can they make?
16. 16.8 + 9 =
17. 17.26² =
18. 18.Double 91 =
19. 19.7 + 9 =
20. 20.9 + 8 =
21. 21.60 + 73 =
22. 22.14 + 16 =
23. 23.420 ÷ 5 =
24. 24.63 ÷ 3 =
25. 25.21² =
26. 26.50% of ₹640 =
27. 27.60 − 48 =
28. 28.A train leaves at 7:15 and reaches the next city at 7:50. How many minutes is the journey?
29. 29.Best estimate of 96 × 88? (a) 90000 (b) 900 (c) 9000
30. 30.57 × 3 =
31. 31.79 − 16 =
32. 32.18 × 8 =
33. 33.102 − 29 =
34. 34.6 + ? = 10
35. 35.208 ÷ 8 =
36. 36.Best estimate of 79 × 94? (a) 72000 (b) 720 (c) 7200
37. 37.62 × 4 =
38. 38.88 − 73 =
39. 39.10% of ₹400 =
40. 40.60 − 47 =

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