Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 703 · 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. 1.69 + 29 =
2. 2.A film starts at 2:10 and ends at 5:10. How many minutes long is the film?
3. 3.60 ÷ 4 =
4. 4.503 − 479 =
5. 5.94 − 29 =
6. 6.25% of ₹170 =
7. 7.25% of ₹500 =
8. 8.24² =
9. 9.57 children stand in rows of 8. How many full rows can they make?
10. 10.80 ÷ 4 =
11. 11.189 ÷ 9 =
12. 12.26 + 9 =
13. 13.Half of 160 =
14. 14.80 − 26 =
15. 15.1028 − 982 =
16. 16.564 ÷ 6 =
17. 17.27 × 8 =
18. 18.18 × 6 =
19. 19.64 + ? = 100
20. 20.Half of 86 =
21. 21.Double 19 =
22. 22.You buy a bag of mangoes for ₹46 and pay with a ₹100 note. How much change do you get, in rupees?
23. 23.60 − 30 =
24. 24.62 − 43 =
25. 25.574 ÷ 7 =
26. 26.67 + 45 =
27. 27.9 + 10 =
28. 28.Half of 72 =
29. 29.56 + 49 =
30. 30.5% of ₹280 =
31. 31.Best estimate of 43 × 62? (a) 24000 (b) 2400 (c) 240
32. 32.62 − 19 =
33. 33.33 laddoos are packed in boxes of 4. How many laddoos are left over?
34. 34.15² =
35. 35.A train leaves at 4:30 and reaches the next city at 5:30. How many minutes is the journey?
36. 36.A cricket match starts at 1:55 and the first innings ends at 2:40. How many minutes did the innings last?
37. 37.21² =
38. 38.433 − 99 =
39. 39.53 − 37 =
40. 40.Half of 36 =

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