Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 112 · 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. 1.16 × 4 =
2. 2.250 ÷ 50 =
3. 3.Check with nines: 507 + 276 = 788. Correct or wrong? (a) wrong (b) correct
4. 4.1 + 6 + 2 + 9 =
5. 5.Best estimate of 41 × 62? (a) 4800 (b) 24000 (c) 2400 (d) 240
6. 6.149 − 46 =
7. 7.825 ÷ 25 =
8. 8.Best estimate of 903 × 3? (a) 27000 (b) 2700 (c) 270 (d) 5400
9. 9.20 × 50 =
10. 10.₹47.80 − ₹21.55 =
11. 11.42 × 15 =
12. 12.32 × 50 =
13. 13.62 − 59 =
14. 14.50% of 180 =
15. 15.71 × 50 =
16. 16.Check with nines: 47 × 16 = 752. Correct or wrong? (a) correct (b) wrong
17. 17.437 − 77 =
18. 18.440 ÷ 5 =
19. 19.Best estimate of 38 × 81? (a) 320 (b) 32000 (c) 3200 (d) 6400
20. 20.361 + 28 =
21. 21.26 + 88 + 31 + 23 =
22. 22.12 × 17 =
23. 23.₹87.20 + ₹25.55 =
24. 24.₹91.80 + ₹13.95 =
25. 25.302 − 79 =
26. 26.31² =
27. 27.99 − 18 =
28. 28.11 × 11 =
29. 29.Best estimate of 803 × 4? (a) 6400 (b) 320 (c) 3200 (d) 32000
30. 30.545 − 46 =
31. 31.12 × 13 =
32. 32.68 + 67 =
33. 33.10% of 120 =
34. 34.5% of 220 =
35. 35.58 × 50 =
36. 36.Best estimate of 402 × 3? (a) 1200 (b) 120 (c) 12000 (d) 2400
37. 37.200 ÷ 50 =
38. 38.368 + 17 =
39. 39.₹65.85 − ₹32.65 =
40. 40.582 − 27 =

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