Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 440 · 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. 1.5% of 410 =
2. 2.538 − 19 =
3. 3.69² =
4. 4.18 × 13 =
5. 5.285 + 78 =
6. 6.5 × 15 =
7. 7.20% of 80 =
8. 8.191 + 68 =
9. 9.28 + 27 + 48 + 63 =
10. 10.485 + 27 =
11. 11.Best estimate of 197 × 7? (a) 14000 (b) 2800 (c) 1400 (d) 140
12. 12.4 + 5 + 6 + 5 =
13. 13.156 × 4 =
14. 14.Best estimate of 303 × 8? (a) 4800 (b) 240 (c) 2400 (d) 24000
15. 15.Check with nines: 735 + 217 = 952. Correct or wrong? (a) correct (b) wrong
16. 16.408 + 19 =
17. 17.18 × 14 =
18. 18.328 − 59 =
19. 19.Check with nines: 509 + 347 = 854. Correct or wrong? (a) correct (b) wrong
20. 20.53 × 8 =
21. 21.18 × 15 =
22. 22.Best estimate of 22 × 28? (a) 6000 (b) 600 (c) 60 (d) 1200
23. 23.492 − 16 =
24. 24.50% of 340 =
25. 25.57 × 8 =
26. 26.Check with nines: 52 × 28 = 1458. Correct or wrong? (a) wrong (b) correct
27. 27.235 + 58 =
28. 28.470 − 69 =
29. 29.508 − 46 =
30. 30.36 + 53 + 27 + 58 =
31. 31.Check with nines: 910 + 705 = 1615. Correct or wrong? (a) wrong (b) correct
32. 32.Best estimate of 18 × 49? (a) 100 (b) 10000 (c) 1000 (d) 2000
33. 33.51² =
34. 34.598 − 59 =
35. 35.₹44.55 − ₹22.90 =
36. 36.Best estimate of 79 × 21? (a) 160 (b) 16000 (c) 3200 (d) 1600
37. 37.95 − 89 =
38. 38.59² =
39. 39.165 + 87 =
40. 40.₹82.05 + ₹18.85 =

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