Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 306 · 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 × 13 =
2. 2.380 + 89 =
3. 3.Best estimate of 72 × 38? (a) 5600 (b) 280 (c) 28000 (d) 2800
4. 4.₹73.40 − ₹30.80 =
5. 5.1950 ÷ 50 =
6. 6.10% of 570 =
7. 7.22 + 30 + 36 + 57 =
8. 8.Best estimate of 498 × 5? (a) 5000 (b) 2500 (c) 25000 (d) 250
9. 9.55 × 5 =
10. 10.19 × 15 =
11. 11.50% of 580 =
12. 12.10% of 60 =
13. 13.Best estimate of 58 × 28? (a) 18000 (b) 1800 (c) 180 (d) 3600
14. 14.16 × 18 =
15. 15.6 + 7 + 2 + 8 + 5 =
16. 16.25% of 390 =
17. 17.29² =
18. 18.471 + 39 =
19. 19.25 × 15 =
20. 20.51² =
21. 21.2 + 1 + 8 + 1 + 2 =
22. 22.41 × 50 =
23. 23.481 + 18 =
24. 24.25% of 790 =
25. 25.59² =
26. 26.46 × 4 =
27. 27.₹25.25 + ₹44.90 =
28. 28.38 × 15 =
29. 29.50% of 140 =
30. 30.Check with nines: 471 + 902 = 1379. Correct or wrong? (a) wrong (b) correct
31. 31.9 × 15 =
32. 32.56 × 50 =
33. 33.5% of 580 =
34. 34.30 + 79 + 63 + 57 =
35. 35.31 × 8 =
36. 36.2 + 5 + 2 + 8 + 5 =
37. 37.38 + 59 + 35 + 48 =
38. 38.26 + 45 + 19 + 66 =
39. 39.36 × 5 =
40. 40.Best estimate of 97 × 9? (a) 900 (b) 1800 (c) 90 (d) 9000

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