Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 835 · 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.₹92.35 + ₹46.75 =
2. 2.276 − 56 =
3. 3.15% of 770 =
4. 4.1% of 360 =
5. 5.₹77.85 + ₹6.50 =
6. 6.Best estimate of 78 × 28? (a) 240 (b) 2400 (c) 24000 (d) 4800
7. 7.17 × 12 =
8. 8.15 × 14 =
9. 9.18 × 15 =
10. 10.2 + 4 + 5 + 7 + 5 =
11. 11.5% of 700 =
12. 12.349 − 79 =
13. 13.1% of 290 =
14. 14.395 ÷ 5 =
15. 15.78 + 55 + 89 + 22 =
16. 16.Best estimate of 59 × 48? (a) 300 (b) 6000 (c) 30000 (d) 3000
17. 17.51² =
18. 18.₹56.85 + ₹10.20 =
19. 19.333 − 96 =
20. 20.146 − 66 =
21. 21.19² =
22. 22.130 + 38 =
23. 23.Check with nines: 542 + 263 = 807. Correct or wrong? (a) wrong (b) correct
24. 24.63 + 83 + 25 + 73 =
25. 25.42 × 50 =
26. 26.147 − 16 =
27. 27.1 + 2 + 2 + 1 + 8 =
28. 28.7 + 3 + 7 + 7 =
29. 29.4 + 8 + 5 + 6 =
30. 30.13 × 15 =
31. 31.187 + 37 =
32. 32.364 − 89 =
33. 33.Check with nines: 320 + 630 = 950. Correct or wrong? (a) correct (b) wrong
34. 34.490 − 68 =
35. 35.₹23.45 + ₹40.40 =
36. 36.Best estimate of 601 × 6? (a) 3600 (b) 7200 (c) 360 (d) 36000
37. 37.156 × 4 =
38. 38.6 + 6 + 7 + 3 =
39. 39.850 ÷ 50 =
40. 40.19 × 5 =

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