Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 984 · 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. 1.920 ÷ 5 =
2. 2.72 × 5 =
3. 3.18 × 11 =
4. 4.229 − 86 =
5. 5.255 + 48 =
6. 6.1 + 9 + 4 + 9 =
7. 7.182 + 27 =
8. 8.71 + 71 + 66 + 17 =
9. 9.₹28.70 − ₹15.80 =
10. 10.58 × 8 =
11. 11.5% of 590 =
12. 12.61² =
13. 13.25% of 730 =
14. 14.20 × 8 =
15. 15.47 × 5 =
16. 16.12 × 15 =
17. 17.436 + 99 =
18. 18.152 × 4 =
19. 19.164 + 29 =
20. 20.1 + 7 + 1 + 1 + 9 =
21. 21.11 × 19 =
22. 22.Best estimate of 22 × 88? (a) 1800 (b) 3600 (c) 180 (d) 18000
23. 23.97 × 4 =
24. 24.38 × 15 =
25. 25.25% of 900 =
26. 26.10% of 580 =
27. 27.28 × 8 =
28. 28.14 × 50 =
29. 29.₹11.80 + ₹43.35 =
30. 30.57 × 5 =
31. 31.Best estimate of 78 × 61? (a) 480 (b) 48000 (c) 4800 (d) 9600
32. 32.39² =
33. 33.8 + 2 + 6 + 2 =
34. 34.162 + 79 =
35. 35.262 − 99 =
36. 36.13 × 4 =
37. 37.Best estimate of 69 × 69? (a) 9800 (b) 490 (c) 4900 (d) 49000
38. 38.5 + 9 + 1 + 3 + 5 =
39. 39.33 × 15 =
40. 40.Check with nines: 77 × 96 = 7392. Correct or wrong? (a) wrong (b) correct

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