Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 345 · 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.A film starts at 6:15 and ends at 8:25. How many minutes long is the film?
2. 2.43 × 4 =
3. 3.50% of ₹230 =
4. 4.74 − 47 =
5. 5.61 − 41 =
6. 6.Best estimate of 60 × 37? (a) 2400 (b) 240 (c) 24000
7. 7.105 − 56 =
8. 8.47 × 9 =
9. 9.A train leaves at 6:45 and reaches the next city at 9:50. How many minutes is the journey?
10. 10.200 ÷ 4 =
11. 11.18 × 5 =
12. 12.54 + ? = 100
13. 13.You buy a cricket ball for ₹63 and pay with a ₹100 note. How much change do you get, in rupees?
14. 14.124 ÷ 4 =
15. 15.36 × 8 =
16. 16.Double 17 =
17. 17.29 + 74 =
18. 18.5% of ₹500 =
19. 19.40 × 4 =
20. 20.93 − 23 =
21. 21.40 × 8 =
22. 22.528 ÷ 6 =
23. 23.Best estimate of 80 × 23? (a) 16000 (b) 160 (c) 1600
24. 24.36 + 88 =
25. 25.46 × 4 =
26. 26.A film starts at 7:10 and ends at 9:00. How many minutes long is the film?
27. 27.89 − 48 =
28. 28.16² =
29. 29.Best estimate of 447 + 396? (a) 600 (b) 800 (c) 1000
30. 30.25 + 26 =
31. 31.You buy a cricket ball for ₹21 and a pen for ₹22. You pay with a ₹100 note. How much change do you get, in rupees?
32. 32.176 ÷ 8 =
33. 33.522 − 480 =
34. 34.60 − 19 =
35. 35.14 × 4 =
36. 36.You buy a bag of mangoes for ₹448 and pay with a ₹500 note. How much change do you get, in rupees?
37. 37.96 ÷ 8 =
38. 38.650 + 99 =
39. 39.301 − 278 =
40. 40.529 − 493 =

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