Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 745 · 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. 1.8 × 15 =
2. 2.Best estimate of 78 × 69? (a) 11200 (b) 56000 (c) 560 (d) 5600
3. 3.4 + 6 + 7 + 3 =
4. 4.267 + 38 =
5. 5.4 + 7 + 6 + 1 =
6. 6.Best estimate of 59 × 82? (a) 4800 (b) 9600 (c) 48000 (d) 480
7. 7.469 + 99 =
8. 8.188 − 66 =
9. 9.₹23.15 + ₹28.40 =
10. 10.50% of 490 =
11. 11.31² =
12. 12.14 + 86 + 71 + 31 =
13. 13.350 ÷ 50 =
14. 14.1% of 370 =
15. 15.Check with nines: 61 × 40 = 2444. Correct or wrong? (a) correct (b) wrong
16. 16.7 + 4 + 5 + 6 =
17. 17.11 × 16 =
18. 18.Best estimate of 19 × 39? (a) 1600 (b) 80 (c) 800 (d) 8000
19. 19.97 × 5 =
20. 20.25% of 880 =
21. 21.1175 ÷ 25 =
22. 22.54 × 5 =
23. 23.75 × 50 =
24. 24.31 × 15 =
25. 25.5 + 7 + 5 + 5 + 9 =
26. 26.43 × 15 =
27. 27.Check with nines: 55 × 77 = 4235. Correct or wrong? (a) correct (b) wrong
28. 28.20 × 8 =
29. 29.83 + 57 =
30. 30.81 + 56 + 46 + 67 =
31. 31.₹54.35 + ₹27.80 =
32. 32.14 × 11 =
33. 33.97 × 50 =
34. 34.65 × 5 =
35. 35.19 × 4 =
36. 36.₹67.30 + ₹34.80 =
37. 37.₹69.40 + ₹12.05 =
38. 38.225 ÷ 25 =
39. 39.35 + 87 + 14 + 22 =
40. 40.89 + 70 + 51 + 77 =

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