Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 625 · 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.₹27.15 + ₹44.15 =
2. 2.Best estimate of 71 × 62? (a) 8400 (b) 42000 (c) 420 (d) 4200
3. 3.870 ÷ 5 =
4. 4.6 + 5 + 2 + 4 =
5. 5.63 × 50 =
6. 6.29 × 15 =
7. 7.385 + 18 =
8. 8.102 + 69 =
9. 9.36 × 8 =
10. 10.Best estimate of 701 × 5? (a) 350 (b) 7000 (c) 35000 (d) 3500
11. 11.49 × 5 =
12. 12.₹95.55 − ₹20.85 =
13. 13.5% of 270 =
14. 14.52 × 50 =
15. 15.26 × 4 =
16. 16.Best estimate of 803 × 5? (a) 8000 (b) 4000 (c) 400 (d) 40000
17. 17.12 × 15 =
18. 18.20 × 50 =
19. 19.₹92.10 + ₹20.05 =
20. 20.1 + 4 + 9 + 6 =
21. 21.2 + 4 + 5 + 8 + 2 =
22. 22.5 + 1 + 2 + 9 =
23. 23.20 + 56 + 24 + 47 =
24. 24.318 + 38 =
25. 25.Best estimate of 39 × 28? (a) 2400 (b) 120 (c) 12000 (d) 1200
26. 26.11 × 14 =
27. 27.Best estimate of 31 × 51? (a) 150 (b) 15000 (c) 1500 (d) 3000
28. 28.₹57.55 − ₹14.50 =
29. 29.8 + 9 + 4 + 1 =
30. 30.66 × 5 =
31. 31.28 × 15 =
32. 32.177 − 69 =
33. 33.32 × 15 =
34. 34.197 − 78 =
35. 35.67 × 50 =
36. 36.59² =
37. 37.27 × 15 =
38. 38.41² =
39. 39.12 × 15 =
40. 40.Best estimate of 82 × 29? (a) 4800 (b) 2400 (c) 24000 (d) 240

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