Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 637 · 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. 1.25% of 770 =
2. 2.17 × 5 =
3. 3.59² =
4. 4.Best estimate of 297 × 6? (a) 180 (b) 3600 (c) 18000 (d) 1800
5. 5.66 × 8 =
6. 6.509 − 67 =
7. 7.210 + 78 =
8. 8.85 × 4 =
9. 9.1 + 1 + 3 + 7 =
10. 10.29 × 15 =
11. 11.2 + 1 + 8 + 2 =
12. 12.Check with nines: 138 + 416 = 554. Correct or wrong? (a) correct (b) wrong
13. 13.1400 ÷ 25 =
14. 14.5 + 4 + 7 + 5 =
15. 15.Best estimate of 397 × 6? (a) 24000 (b) 240 (c) 2400 (d) 4800
16. 16.Check with nines: 24 × 32 = 768. Correct or wrong? (a) correct (b) wrong
17. 17.29² =
18. 18.70 × 8 =
19. 19.44 × 15 =
20. 20.20 × 50 =
21. 21.Best estimate of 18 × 61? (a) 120 (b) 2400 (c) 12000 (d) 1200
22. 22.44 × 15 =
23. 23.65 × 5 =
24. 24.534 − 59 =
25. 25.49 × 15 =
26. 26.264 − 47 =
27. 27.61² =
28. 28.70 × 4 =
29. 29.180 + 49 =
30. 30.18 × 19 =
31. 31.40 × 15 =
32. 32.Check with nines: 259 + 894 = 1153. Correct or wrong? (a) wrong (b) correct
33. 33.13 × 15 =
34. 34.356 + 67 =
35. 35.57 × 15 =
36. 36.28 + 13 + 69 + 33 =
37. 37.₹61.15 + ₹15.10 =
38. 38.9 + 2 + 3 + 8 =
39. 39.25 × 4 =
40. 40.Check with nines: 75 × 78 = 5855. Correct or wrong? (a) correct (b) wrong

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