Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 683 · 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 601 × 3? (a) 3600 (b) 180 (c) 18000 (d) 1800
2. 2.200 ÷ 50 =
3. 3.45 × 8 =
4. 4.15 × 19 =
5. 5.48 × 8 =
6. 6.Check with nines: 48 × 45 = 2162. Correct or wrong? (a) correct (b) wrong
7. 7.485 − 37 =
8. 8.52 × 5 =
9. 9.73 × 5 =
10. 10.21² =
11. 11.7 + 1 + 3 + 7 + 3 =
12. 12.525 ÷ 25 =
13. 13.595 ÷ 5 =
14. 14.13 × 15 =
15. 15.Best estimate of 198 × 8? (a) 160 (b) 16000 (c) 3200 (d) 1600
16. 16.22 × 8 =
17. 17.Best estimate of 59 × 22? (a) 120 (b) 2400 (c) 1200 (d) 12000
18. 18.Check with nines: 33 × 88 = 2904. Correct or wrong? (a) wrong (b) correct
19. 19.Best estimate of 501 × 9? (a) 4500 (b) 9000 (c) 450 (d) 45000
20. 20.Best estimate of 303 × 4? (a) 12000 (b) 1200 (c) 120 (d) 2400
21. 21.135 ÷ 5 =
22. 22.9 + 9 + 1 + 7 =
23. 23.216 − 56 =
24. 24.61² =
25. 25.₹31.20 + ₹2.90 =
26. 26.102 + 78 =
27. 27.1 + 8 + 2 + 2 + 5 =
28. 28.41² =
29. 29.60 × 8 =
30. 30.68 − 59 =
31. 31.262 + 28 =
32. 32.27 × 8 =
33. 33.157 × 4 =
34. 34.17 × 11 =
35. 35.46 × 15 =
36. 36.70 − 27 =
37. 37.440 − 78 =
38. 38.Check with nines: 687 + 852 = 1539. Correct or wrong? (a) wrong (b) correct
39. 39.366 + 47 =
40. 40.1150 ÷ 50 =

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