Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 757 · 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. 1.74 + 17 =
2. 2.18² =
3. 3.You buy a cricket ball for ₹69 and pay with a ₹100 note. How much change do you get, in rupees?
4. 4.275 ÷ 5 =
5. 5.32 × 8 =
6. 6.26 + 28 =
7. 7.49 + 19 =
8. 8.192 ÷ 4 =
9. 9.76 − 15 =
10. 10.124 ÷ 4 =
11. 11.Double 22 =
12. 12.You buy a cricket ball for ₹40 and a pen for ₹36. You pay with a ₹100 note. How much change do you get, in rupees?
13. 13.26 + 9 =
14. 14.Best estimate of 21 × 60? (a) 1200 (b) 120 (c) 12000
15. 15.You start your homework at 3:35 and finish at 4:25. How many minutes did you work?
16. 16.7 + ? = 10
17. 17.84 − 22 =
18. 18.72 × 3 =
19. 19.57 + 62 =
20. 20.Best estimate of 36 × 30? (a) 120 (b) 1200 (c) 12000
21. 21.89 − 63 =
22. 22.20 + 19 =
23. 23.39 laddoos are packed in boxes of 6. How many laddoos are left over?
24. 24.You buy a kite for ₹23 and pay with a ₹100 note. How much change do you get, in rupees?
25. 25.57 + 28 =
26. 26.What is the remainder when 29 is divided by 5?
27. 27.A train leaves at 6:10 and reaches the next city at 7:35. How many minutes is the journey?
28. 28.You buy a water bottle for ₹99 and pay with a ₹100 note. How much change do you get, in rupees?
29. 29.96 ÷ 4 =
30. 30.83 − 68 =
31. 31.291 − 99 =
32. 32.81 − 72 =
33. 33.378 ÷ 6 =
34. 34.24² =
35. 35.230 − 187 =
36. 36.90 − 66 =
37. 37.89 − 19 =
38. 38.53 − 21 =
39. 39.15² =
40. 40.You buy a bag of mangoes for ₹180 and pay with a ₹500 note. How much change do you get, in rupees?

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