Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 527 · 40 questions

The fast method (Spot the trick): A 7, 8 or 9 in the ones place → round and fix. × 4, 8, 5, 50 or 15 → doubling or halving tricks. ÷ 5, 25 or 50 → double first. A percentage → start from 10%. Checking or estimating → nines or rounding.

1. 1.Best estimate of 71 × 38? (a) 28000 (b) 280 (c) 2800 (d) 5600
2. 2.580 − 17 =
3. 3.Check with nines: 16 × 12 = 192. Correct or wrong? (a) correct (b) wrong
4. 4.860 ÷ 5 =
5. 5.57 × 50 =
6. 6.930 ÷ 5 =
7. 7.20% of 830 =
8. 8.10% of 810 =
9. 9.379 − 37 =
10. 10.Check with nines: 52 × 14 = 728. Correct or wrong? (a) wrong (b) correct
11. 11.₹53.25 − ₹29.55 =
12. 12.Best estimate of 61 × 89? (a) 10800 (b) 54000 (c) 5400 (d) 540
13. 13.57 + 27 + 38 + 76 =
14. 14.Best estimate of 92 × 32? (a) 2700 (b) 5400 (c) 27000 (d) 270
15. 15.Check with nines: 78 × 63 = 4914. Correct or wrong? (a) correct (b) wrong
16. 16.Best estimate of 91 × 79? (a) 720 (b) 72000 (c) 7200 (d) 14400
17. 17.61 × 15 =
18. 18.15 × 8 =
19. 19.409 − 76 =
20. 20.Check with nines: 87 × 55 = 4777. Correct or wrong? (a) correct (b) wrong
21. 21.255 − 18 =
22. 22.81 + 84 + 66 + 63 =
23. 23.501 − 16 =
24. 24.Best estimate of 898 × 9? (a) 810 (b) 16200 (c) 81000 (d) 8100
25. 25.25% of 250 =
26. 26.118 × 4 =
27. 27.₹13.45 + ₹2.90 =
28. 28.Best estimate of 19 × 32? (a) 6000 (b) 600 (c) 1200 (d) 60
29. 29.390 + 79 =
30. 30.₹42.40 − ₹7.05 =
31. 31.575 ÷ 25 =
32. 32.465 − 26 =
33. 33.49 × 5 =
34. 34.227 + 29 =
35. 35.232 − 37 =
36. 36.54 + 77 =
37. 37.180 − 97 =
38. 38.415 + 69 =
39. 39.50% of 840 =
40. 40.16 × 4 =

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