Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 136 · 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. 1.14 × 15 =
2. 2.60 + 85 + 17 + 51 =
3. 3.491 − 76 =
4. 4.15% of 60 =
5. 5.36 + 17 =
6. 6.77 + 82 + 50 + 65 =
7. 7.12 × 15 =
8. 8.Check with nines: 39 × 24 = 941. Correct or wrong? (a) correct (b) wrong
9. 9.10% of 740 =
10. 10.Best estimate of 38 × 68? (a) 5600 (b) 280 (c) 2800 (d) 28000
11. 11.5% of 890 =
12. 12.281 + 49 =
13. 13.48 × 50 =
14. 14.244 + 17 =
15. 15.17 × 15 =
16. 16.15% of 820 =
17. 17.850 ÷ 25 =
18. 18.1325 ÷ 25 =
19. 19.112 × 4 =
20. 20.79² =
21. 21.327 − 88 =
22. 22.66 × 50 =
23. 23.33 × 15 =
24. 24.15 × 12 =
25. 25.25 × 15 =
26. 26.28 × 15 =
27. 27.25 + 45 + 22 + 25 =
28. 28.Check with nines: 256 + 536 = 798. Correct or wrong? (a) wrong (b) correct
29. 29.29² =
30. 30.35 × 4 =
31. 31.₹82.45 − ₹43.25 =
32. 32.19 × 18 =
33. 33.Check with nines: 787 + 899 = 1686. Correct or wrong? (a) correct (b) wrong
34. 34.Best estimate of 101 × 7? (a) 1400 (b) 700 (c) 7000 (d) 70
35. 35.585 ÷ 5 =
36. 36.₹32.95 + ₹14.20 =
37. 37.72 + 28 =
38. 38.10% of 50 =
39. 39.62 × 50 =
40. 40.Check with nines: 527 + 943 = 1476. Correct or wrong? (a) wrong (b) correct

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