Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 873 · 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 32 × 22? (a) 600 (b) 1200 (c) 6000 (d) 60
2. 2.3 + 7 + 2 + 2 + 7 =
3. 3.24 × 5 =
4. 4.Check with nines: 996 + 243 = 1239. Correct or wrong? (a) correct (b) wrong
5. 5.Best estimate of 298 × 9? (a) 2700 (b) 5400 (c) 270 (d) 27000
6. 6.225 ÷ 5 =
7. 7.₹62.25 + ₹37.35 =
8. 8.5 + 2 + 8 + 8 =
9. 9.52 × 4 =
10. 10.Check with nines: 346 + 711 = 1057. Correct or wrong? (a) wrong (b) correct
11. 11.38 × 15 =
12. 12.10% of 140 =
13. 13.₹5.05 + ₹10.40 =
14. 14.Best estimate of 101 × 8? (a) 1600 (b) 8000 (c) 80 (d) 800
15. 15.301 − 26 =
16. 16.850 ÷ 5 =
17. 17.78 + 69 + 77 + 50 =
18. 18.133 + 29 =
19. 19.Best estimate of 297 × 4? (a) 2400 (b) 120 (c) 1200 (d) 12000
20. 20.376 + 47 =
21. 21.150 ÷ 50 =
22. 22.2 + 7 + 3 + 3 =
23. 23.5% of 140 =
24. 24.34 × 15 =
25. 25.₹88.10 − ₹38.40 =
26. 26.₹46.10 − ₹29.65 =
27. 27.129 − 66 =
28. 28.Check with nines: 74 × 14 = 1035. Correct or wrong? (a) correct (b) wrong
29. 29.269 + 57 =
30. 30.80 × 50 =
31. 31.6 + 3 + 7 + 7 =
32. 32.Best estimate of 501 × 7? (a) 3500 (b) 35000 (c) 7000 (d) 350
33. 33.Best estimate of 897 × 3? (a) 27000 (b) 5400 (c) 2700 (d) 270
34. 34.46 × 4 =
35. 35.14 × 8 =
36. 36.7 + 1 + 9 + 1 =
37. 37.15% of 410 =
38. 38.15 × 17 =
39. 39.1175 ÷ 25 =
40. 40.61 + 38 =

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