Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 165 · 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 702 × 3? (a) 2100 (b) 4200 (c) 210 (d) 21000
2. 2.242 + 39 =
3. 3.304 − 39 =
4. 4.8 + 5 + 7 + 2 + 8 =
5. 5.215 ÷ 5 =
6. 6.36 × 15 =
7. 7.8 + 8 + 2 + 2 =
8. 8.9 + 5 + 9 + 5 =
9. 9.Best estimate of 502 × 8? (a) 400 (b) 4000 (c) 8000 (d) 40000
10. 10.130 + 48 =
11. 11.₹99.45 − ₹25.25 =
12. 12.444 − 97 =
13. 13.25% of 440 =
14. 14.5 + 5 + 2 + 1 =
15. 15.1300 ÷ 50 =
16. 16.1 + 1 + 5 + 7 + 9 =
17. 17.49 × 15 =
18. 18.96 + 17 =
19. 19.Best estimate of 503 × 3? (a) 3000 (b) 15000 (c) 150 (d) 1500
20. 20.25% of 680 =
21. 21.12 × 17 =
22. 22.73 × 50 =
23. 23.5 + 3 + 3 + 5 =
24. 24.88 × 5 =
25. 25.18 × 12 =
26. 26.91 × 50 =
27. 27.351 + 77 =
28. 28.Best estimate of 68 × 89? (a) 630 (b) 63000 (c) 6300 (d) 12600
29. 29.71 × 5 =
30. 30.₹54.05 − ₹34.25 =
31. 31.Check with nines: 57 × 67 = 3819. Correct or wrong? (a) correct (b) wrong
32. 32.499 + 98 =
33. 33.6 + 1 + 2 + 9 + 8 =
34. 34.105 − 57 =
35. 35.169 − 27 =
36. 36.27 × 15 =
37. 37.209 − 28 =
38. 38.15% of 230 =
39. 39.428 − 27 =
40. 40.Best estimate of 58 × 89? (a) 540 (b) 54000 (c) 5400 (d) 10800

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