Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 341 · 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. 1.151 × 4 =
2. 2.325 ÷ 25 =
3. 3.246 − 17 =
4. 4.Check with nines: 22 × 30 = 660. Correct or wrong? (a) correct (b) wrong
5. 5.Best estimate of 41 × 32? (a) 1200 (b) 12000 (c) 2400 (d) 120
6. 6.8 + 7 + 4 + 3 + 5 =
7. 7.Check with nines: 154 + 151 = 305. Correct or wrong? (a) correct (b) wrong
8. 8.308 + 79 =
9. 9.59² =
10. 10.25 × 8 =
11. 11.₹71.95 + ₹11.05 =
12. 12.₹43.05 − ₹24.55 =
13. 13.Check with nines: 778 + 605 = 1383. Correct or wrong? (a) correct (b) wrong
14. 14.Best estimate of 298 × 4? (a) 1200 (b) 2400 (c) 120 (d) 12000
15. 15.200 ÷ 50 =
16. 16.8 + 5 + 5 + 3 + 1 =
17. 17.655 ÷ 5 =
18. 18.₹68.10 + ₹10.10 =
19. 19.37 + 89 =
20. 20.Best estimate of 502 × 6? (a) 6000 (b) 300 (c) 30000 (d) 3000
21. 21.34 × 4 =
22. 22.262 + 87 =
23. 23.₹81.80 + ₹18.25 =
24. 24.204 + 27 =
25. 25.715 ÷ 5 =
26. 26.20% of 450 =
27. 27.17 × 19 =
28. 28.12 × 16 =
29. 29.13 × 16 =
30. 30.9 × 15 =
31. 31.₹34.10 − ₹28.55 =
32. 32.41 × 50 =
33. 33.70 × 50 =
34. 34.15 + 62 + 84 + 68 =
35. 35.32 + 54 + 21 + 46 =
36. 36.31 + 89 + 44 + 80 =
37. 37.650 ÷ 50 =
38. 38.365 − 39 =
39. 39.442 + 37 =
40. 40.16 × 16 =

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