Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 626 · 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. 1.17 × 15 =
2. 2.6 + 3 + 3 + 8 + 7 =
3. 3.4 × 15 =
4. 4.Best estimate of 301 × 6? (a) 1800 (b) 3600 (c) 18000 (d) 180
5. 5.Best estimate of 602 × 3? (a) 18000 (b) 1800 (c) 180 (d) 3600
6. 6.25% of 370 =
7. 7.₹12.10 + ₹41.05 =
8. 8.57 × 15 =
9. 9.493 + 58 =
10. 10.29 × 15 =
11. 11.15% of 830 =
12. 12.Best estimate of 78 × 82? (a) 6400 (b) 64000 (c) 640 (d) 12800
13. 13.26 + 66 + 43 + 25 =
14. 14.20 × 15 =
15. 15.₹53.85 + ₹2.45 =
16. 16.₹37.75 − ₹10.65 =
17. 17.₹47.90 − ₹17.40 =
18. 18.3 + 3 + 4 + 7 =
19. 19.13 × 16 =
20. 20.91² =
21. 21.259 − 26 =
22. 22.71 + 25 + 17 + 64 =
23. 23.157 × 4 =
24. 24.5 + 2 + 6 + 8 =
25. 25.61² =
26. 26.17 × 13 =
27. 27.61 × 15 =
28. 28.20% of 610 =
29. 29.3 + 4 + 7 + 1 =
30. 30.Best estimate of 599 × 8? (a) 480 (b) 9600 (c) 4800 (d) 48000
31. 31.89² =
32. 32.405 + 68 =
33. 33.15% of 790 =
34. 34.Check with nines: 361 + 224 = 586. Correct or wrong? (a) correct (b) wrong
35. 35.Best estimate of 399 × 4? (a) 160 (b) 1600 (c) 3200 (d) 16000
36. 36.323 + 18 =
37. 37.₹79.10 − ₹49.15 =
38. 38.620 ÷ 5 =
39. 39.49² =
40. 40.49² =

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