Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 269 · 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. 1.97 × 5 =
2. 2.316 − 17 =
3. 3.800 ÷ 50 =
4. 4.240 − 47 =
5. 5.Best estimate of 42 × 49? (a) 4000 (b) 2000 (c) 20000 (d) 200
6. 6.₹11.40 + ₹25.15 =
7. 7.4 + 2 + 8 + 6 + 3 =
8. 8.48 × 5 =
9. 9.25 × 50 =
10. 10.1 + 1 + 1 + 9 + 1 =
11. 11.89² =
12. 12.38 × 15 =
13. 13.Best estimate of 901 × 6? (a) 10800 (b) 5400 (c) 54000 (d) 540
14. 14.250 ÷ 25 =
15. 15.16 × 19 =
16. 16.8 × 15 =
17. 17.260 + 98 =
18. 18.20 + 68 + 15 + 21 =
19. 19.26 + 34 + 31 + 16 =
20. 20.491 + 98 =
21. 21.17 × 13 =
22. 22.Best estimate of 88 × 28? (a) 27000 (b) 270 (c) 2700 (d) 5400
23. 23.Best estimate of 202 × 9? (a) 3600 (b) 18000 (c) 1800 (d) 180
24. 24.23 + 24 + 53 + 81 =
25. 25.48 × 5 =
26. 26.23 × 15 =
27. 27.38 + 13 + 36 + 74 =
28. 28.69 + 38 + 79 + 29 =
29. 29.Best estimate of 102 × 3? (a) 300 (b) 600 (c) 30 (d) 3000
30. 30.310 ÷ 5 =
31. 31.Best estimate of 102 × 8? (a) 80 (b) 1600 (c) 8000 (d) 800
32. 32.32 × 15 =
33. 33.144 × 4 =
34. 34.8 + 9 + 4 + 2 + 2 =
35. 35.67 × 5 =
36. 36.89² =
37. 37.₹40.70 − ₹35.50 =
38. 38.54 × 8 =
39. 39.96 × 4 =
40. 40.Best estimate of 62 × 48? (a) 6000 (b) 30000 (c) 3000 (d) 300

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