Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 791 · 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.You buy a cricket ball for ₹19 and a pen for ₹24. You pay with a ₹100 note. How much change do you get, in rupees?
2. 2.546 ÷ 6 =
3. 3.59 + 19 =
4. 4.You buy a kite for ₹36 and a pen for ₹30. You pay with a ₹100 note. How much change do you get, in rupees?
5. 5.3 + ? = 10
6. 6.128 ÷ 8 =
7. 7.50 × 4 =
8. 8.287 ÷ 7 =
9. 9.Double 21 =
10. 10.16² =
11. 11.Best estimate of 77 × 94? (a) 72000 (b) 720 (c) 7200
12. 12.312 ÷ 8 =
13. 13.5% of ₹690 =
14. 14.67 + 27 =
15. 15.80 laddoos are packed in boxes of 6. How many laddoos are left over?
16. 16.220 − 195 =
17. 17.22 + 76 =
18. 18.You buy a notebook for ₹49 and pay with a ₹100 note. How much change do you get, in rupees?
19. 19.120 ÷ 4 =
20. 20.47 × 4 =
21. 21.30 + ? = 100
22. 22.A train leaves at 5:50 and reaches the next city at 6:40. How many minutes is the journey?
23. 23.Half of 28 =
24. 24.A cricket match starts at 1:55 and the first innings ends at 3:30. How many minutes did the innings last?
25. 25.18 × 3 =
26. 26.684 ÷ 9 =
27. 27.Half of 108 =
28. 28.144 ÷ 4 =
29. 29.Half of 82 =
30. 30.96 ÷ 3 =
31. 31.67 + ? = 100
32. 32.Best estimate of 124 + 768? (a) 900 (b) 1100 (c) 700
33. 33.Best estimate of 343 + 484? (a) 800 (b) 1000 (c) 600
34. 34.60 − 42 =
35. 35.21² =
36. 36.148 ÷ 4 =
37. 37.576 ÷ 6 =
38. 38.15² =
39. 39.51 + 29 =
40. 40.44 laddoos are packed in boxes of 8. How many laddoos are left over?

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