Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 892 · 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. 1.294 + 88 =
2. 2.48 × 8 =
3. 3.4 + 5 + 6 + 6 =
4. 4.80 + 41 + 12 + 62 =
5. 5.₹49.75 − ₹14.45 =
6. 6.89 + 12 + 85 + 16 =
7. 7.46 × 5 =
8. 8.₹25.70 − ₹13.85 =
9. 9.₹6.60 + ₹49.30 =
10. 10.Best estimate of 72 × 91? (a) 12600 (b) 630 (c) 6300 (d) 63000
11. 11.532 − 26 =
12. 12.588 − 16 =
13. 13.91 × 5 =
14. 14.33 × 8 =
15. 15.51² =
16. 16.15 × 15 =
17. 17.66 × 5 =
18. 18.14 × 15 =
19. 19.127 + 37 =
20. 20.31 × 15 =
21. 21.₹8.85 + ₹38.90 =
22. 22.52 + 66 + 70 + 35 =
23. 23.Best estimate of 22 × 41? (a) 800 (b) 1600 (c) 80 (d) 8000
24. 24.96 × 4 =
25. 25.307 − 59 =
26. 26.156 − 77 =
27. 27.29 × 4 =
28. 28.400 ÷ 25 =
29. 29.389 − 28 =
30. 30.314 − 56 =
31. 31.29 + 52 + 52 + 81 =
32. 32.254 − 58 =
33. 33.₹88.45 + ₹9.65 =
34. 34.950 ÷ 50 =
35. 35.215 + 29 =
36. 36.8 + 1 + 3 + 7 =
37. 37.11 × 16 =
38. 38.73 × 50 =
39. 39.5% of 240 =
40. 40.412 − 16 =

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