Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 238 · 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.Best estimate of 32 × 38? (a) 12000 (b) 120 (c) 1200 (d) 2400
2. 2.25% of 350 =
3. 3.48 × 8 =
4. 4.38 + 65 + 53 + 63 =
5. 5.341 + 38 =
6. 6.295 − 58 =
7. 7.Check with nines: 29 × 81 = 2343. Correct or wrong? (a) wrong (b) correct
8. 8.10% of 650 =
9. 9.53 + 66 + 69 + 20 =
10. 10.77 × 4 =
11. 11.68 + 85 + 46 + 86 =
12. 12.40 × 15 =
13. 13.87 × 50 =
14. 14.Best estimate of 29 × 18? (a) 60 (b) 6000 (c) 1200 (d) 600
15. 15.14 × 16 =
16. 16.14 × 14 =
17. 17.146 + 99 =
18. 18.93 × 5 =
19. 19.89 × 4 =
20. 20.39 + 74 + 33 + 75 =
21. 21.89² =
22. 22.Check with nines: 30 × 82 = 2460. Correct or wrong? (a) correct (b) wrong
23. 23.8 + 2 + 1 + 2 + 2 =
24. 24.82 + 17 + 22 + 74 =
25. 25.53 × 15 =
26. 26.533 − 68 =
27. 27.51 × 15 =
28. 28.534 − 87 =
29. 29.89² =
30. 30.₹43.50 − ₹17.05 =
31. 31.Check with nines: 64 × 15 = 960. Correct or wrong? (a) wrong (b) correct
32. 32.29² =
33. 33.16 × 14 =
34. 34.491 − 89 =
35. 35.49² =
36. 36.25% of 340 =
37. 37.57 × 15 =
38. 38.39² =
39. 39.100 ÷ 25 =
40. 40.98 × 5 =

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