Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 829 · 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. 1.122 − 94 =
2. 2.102 − 73 =
3. 3.What is the remainder when 47 is divided by 4?
4. 4.5% of ₹860 =
5. 5.30 + ? = 100
6. 6.216 − 191 =
7. 7.A train leaves at 4:10 and reaches the next city at 5:40. How many minutes is the journey?
8. 8.You buy a water bottle for ₹89 and pay with a ₹100 note. How much change do you get, in rupees?
9. 9.21 × 3 =
10. 10.Best estimate of 77 × 32? (a) 240 (b) 24000 (c) 2400
11. 11.72 − 26 =
12. 12.A film starts at 2:50 and ends at 6:00. How many minutes long is the film?
13. 13.66 × 4 =
14. 14.Half of 36 =
15. 15.16 + 15 =
16. 16.20 + 22 =
17. 17.18 + 17 =
18. 18.56 + ? = 100
19. 19.10% of ₹680 =
20. 20.85 + 7 =
21. 21.165 ÷ 5 =
22. 22.You buy a cricket ball for ₹36 and a pen for ₹12. You pay with a ₹100 note. How much change do you get, in rupees?
23. 23.8 + ? = 10
24. 24.32 + 62 =
25. 25.13² =
26. 26.34 × 9 =
27. 27.13 × 4 =
28. 28.123 − 88 =
29. 29.70 ÷ 5 =
30. 30.A film starts at 6:45 and ends at 7:50. How many minutes long is the film?
31. 31.A cricket match starts at 3:00 and the first innings ends at 4:15. How many minutes did the innings last?
32. 32.67 + 4 =
33. 33.29 × 8 =
34. 34.You buy a box of crayons for ₹17 and a pen for ₹21. You pay with a ₹100 note. How much change do you get, in rupees?
35. 35.46 × 7 =
36. 36.224 ÷ 4 =
37. 37.Half of 30 =
38. 38.13 + 14 =
39. 39.34 × 4 =
40. 40.Best estimate of 457 + 253? (a) 1000 (b) 800 (c) 600

Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths