Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 697 · 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.Check with nines: 945 + 552 = 1497. Correct or wrong? (a) wrong (b) correct
2. 2.10% of 830 =
3. 3.94 + 18 =
4. 4.120 + 19 =
5. 5.130 ÷ 5 =
6. 6.39 × 4 =
7. 7.8 + 7 + 3 + 8 + 8 =
8. 8.Best estimate of 88 × 32? (a) 5400 (b) 2700 (c) 270 (d) 27000
9. 9.Best estimate of 49 × 32? (a) 15000 (b) 150 (c) 1500 (d) 3000
10. 10.₹69.90 + ₹7.35 =
11. 11.675 ÷ 25 =
12. 12.56 + 73 + 43 + 87 =
13. 13.88 + 49 =
14. 14.13 × 19 =
15. 15.₹91.05 − ₹14.75 =
16. 16.5 + 2 + 5 + 7 =
17. 17.9 × 15 =
18. 18.71 + 39 + 27 + 79 =
19. 19.91² =
20. 20.64 × 5 =
21. 21.20 × 15 =
22. 22.63 × 50 =
23. 23.Best estimate of 48 × 89? (a) 4500 (b) 45000 (c) 9000 (d) 450
24. 24.90 × 5 =
25. 25.5 + 9 + 7 + 6 + 3 =
26. 26.181 − 87 =
27. 27.19 × 11 =
28. 28.Best estimate of 31 × 78? (a) 2400 (b) 24000 (c) 4800 (d) 240
29. 29.₹59.40 − ₹11.45 =
30. 30.₹52.35 + ₹22.90 =
31. 31.16 × 13 =
32. 32.8 + 8 + 5 + 2 + 4 =
33. 33.20% of 190 =
34. 34.3 + 9 + 2 + 6 + 1 =
35. 35.18 × 15 =
36. 36.45 × 5 =
37. 37.14 × 19 =
38. 38.10% of 360 =
39. 39.10% of 240 =
40. 40.Check with nines: 83 × 22 = 1834. Correct or wrong? (a) wrong (b) correct

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