Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 73 · 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. 1.64 × 4 =
2. 2.290 − 27 =
3. 3.20% of 150 =
4. 4.12 × 13 =
5. 5.395 − 17 =
6. 6.8 + 7 + 4 + 9 + 1 =
7. 7.Check with nines: 22 × 20 = 446. Correct or wrong? (a) correct (b) wrong
8. 8.25 × 50 =
9. 9.47 + 32 + 73 + 22 =
10. 10.800 ÷ 50 =
11. 11.25% of 30 =
12. 12.49² =
13. 13.1300 ÷ 50 =
14. 14.Check with nines: 69 × 73 = 5036. Correct or wrong? (a) correct (b) wrong
15. 15.135 − 59 =
16. 16.₹32.20 − ₹14.30 =
17. 17.Check with nines: 54 × 50 = 2700. Correct or wrong? (a) correct (b) wrong
18. 18.33 × 15 =
19. 19.51 × 15 =
20. 20.8 + 2 + 8 + 3 =
21. 21.Best estimate of 72 × 69? (a) 4900 (b) 490 (c) 49000 (d) 9800
22. 22.Best estimate of 398 × 8? (a) 3200 (b) 6400 (c) 32000 (d) 320
23. 23.Check with nines: 440 + 218 = 665. Correct or wrong? (a) correct (b) wrong
24. 24.55 + 11 + 12 + 78 =
25. 25.22 × 15 =
26. 26.Check with nines: 731 + 786 = 1517. Correct or wrong? (a) wrong (b) correct
27. 27.65 + 78 + 36 + 39 =
28. 28.291 + 18 =
29. 29.78 × 4 =
30. 30.14 × 12 =
31. 31.381 + 69 =
32. 32.17 × 4 =
33. 33.89 + 71 + 31 + 15 =
34. 34.11 × 19 =
35. 35.54 × 15 =
36. 36.173 − 96 =
37. 37.78 × 50 =
38. 38.13 × 13 =
39. 39.89² =
40. 40.44 × 15 =

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