Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 475 · 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. 1.5 + 1 + 7 + 9 + 9 =
2. 2.51 × 15 =
3. 3.Best estimate of 71 × 89? (a) 12600 (b) 630 (c) 6300 (d) 63000
4. 4.37 × 15 =
5. 5.11 × 15 =
6. 6.76 + 63 + 66 + 62 =
7. 7.₹20.10 + ₹33.45 =
8. 8.21 × 15 =
9. 9.17 × 5 =
10. 10.406 + 57 =
11. 11.29 × 15 =
12. 12.66 + 52 + 77 + 57 =
13. 13.126 − 57 =
14. 14.23 × 15 =
15. 15.76 + 60 + 48 + 41 =
16. 16.19 × 15 =
17. 17.Check with nines: 80 × 39 = 3121. Correct or wrong? (a) wrong (b) correct
18. 18.51² =
19. 19.426 − 17 =
20. 20.460 + 28 =
21. 21.7 × 15 =
22. 22.96 × 50 =
23. 23.Check with nines: 76 × 78 = 5926. Correct or wrong? (a) wrong (b) correct
24. 24.1100 ÷ 25 =
25. 25.23 × 50 =
26. 26.25% of 270 =
27. 27.Best estimate of 49 × 18? (a) 100 (b) 1000 (c) 10000 (d) 2000
28. 28.30 × 15 =
29. 29.9 + 5 + 1 + 6 + 5 =
30. 30.15 × 18 =
31. 31.343 − 66 =
32. 32.81 + 82 + 71 + 77 =
33. 33.16 × 5 =
34. 34.107 + 77 =
35. 35.225 ÷ 25 =
36. 36.429 − 58 =
37. 37.12 × 15 =
38. 38.403 − 36 =
39. 39.51 × 15 =
40. 40.₹47.95 + ₹45.10 =

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