Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 978 · 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. 1.14 + 15 =
2. 2.502 − 475 =
3. 3.9 + ? = 10
4. 4.27 laddoos are packed in boxes of 6. How many laddoos are left over?
5. 5.130 − 94 =
6. 6.19 laddoos are packed in boxes of 3. How many laddoos are left over?
7. 7.What is the remainder when 18 is divided by 4?
8. 8.52 − 17 =
9. 9.50% of ₹210 =
10. 10.12 × 8 =
11. 11.Best estimate of 43 × 63? (a) 2400 (b) 24000 (c) 240
12. 12.102 − 84 =
13. 13.6 + 5 =
14. 14.17 × 8 =
15. 15.What is the remainder when 51 is divided by 7?
16. 16.25% of ₹210 =
17. 17.What is the remainder when 42 is divided by 5?
18. 18.136 ÷ 8 =
19. 19.You buy a water bottle for ₹46 and pay with a ₹100 note. How much change do you get, in rupees?
20. 20.Half of 196 =
21. 21.87 children stand in rows of 8. How many full rows can they make?
22. 22.You start your homework at 8:45 and finish at 11:00. How many minutes did you work?
23. 23.44 × 4 =
24. 24.You start your homework at 2:50 and finish at 4:10. How many minutes did you work?
25. 25.26 + ? = 100
26. 26.77 + ? = 100
27. 27.Best estimate of 468 + 437? (a) 900 (b) 1100 (c) 700
28. 28.24 + 27 =
29. 29.208 ÷ 4 =
30. 30.36 + 78 =
31. 31.16 + 18 =
32. 32.83 − 48 =
33. 33.512 − 481 =
34. 34.82 + 29 =
35. 35.19 + 9 =
36. 36.25% of ₹230 =
37. 37.5% of ₹80 =
38. 38.25% of ₹640 =
39. 39.You buy a pencil box for ₹51 and pay with a ₹100 note. How much change do you get, in rupees?
40. 40.Half of 94 =

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