Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 118 · 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. 1.61 × 15 =
2. 2.59² =
3. 3.300 ÷ 50 =
4. 4.27 × 4 =
5. 5.Check with nines: 495 + 203 = 692. Correct or wrong? (a) correct (b) wrong
6. 6.8 + 7 + 4 + 2 =
7. 7.57 × 5 =
8. 8.15% of 890 =
9. 9.Best estimate of 32 × 41? (a) 120 (b) 1200 (c) 12000 (d) 2400
10. 10.51 + 61 + 49 + 24 =
11. 11.37 × 15 =
12. 12.95 ÷ 5 =
13. 13.40 × 8 =
14. 14.75 + 62 + 36 + 74 =
15. 15.Check with nines: 91 × 18 = 1638. Correct or wrong? (a) wrong (b) correct
16. 16.₹27.15 + ₹8.45 =
17. 17.525 ÷ 25 =
18. 18.105 × 4 =
19. 19.28 × 15 =
20. 20.Check with nines: 58 × 44 = 2552. Correct or wrong? (a) correct (b) wrong
21. 21.375 ÷ 25 =
22. 22.79 + 61 + 27 + 79 =
23. 23.245 ÷ 5 =
24. 24.Best estimate of 497 × 9? (a) 9000 (b) 450 (c) 45000 (d) 4500
25. 25.Check with nines: 17 × 78 = 1326. Correct or wrong? (a) wrong (b) correct
26. 26.90 × 5 =
27. 27.87 × 50 =
28. 28.13 × 15 =
29. 29.Best estimate of 198 × 8? (a) 16000 (b) 3200 (c) 160 (d) 1600
30. 30.113 − 46 =
31. 31.Best estimate of 699 × 5? (a) 7000 (b) 35000 (c) 3500 (d) 350
32. 32.79² =
33. 33.610 ÷ 5 =
34. 34.31² =
35. 35.91 × 5 =
36. 36.95 × 5 =
37. 37.21 × 50 =
38. 38.174 − 99 =
39. 39.₹95.30 + ₹6.55 =
40. 40.₹62.30 − ₹36.25 =

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