Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 681 · 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 92 × 38? (a) 3600 (b) 360 (c) 36000 (d) 7200
2. 2.143 + 29 =
3. 3.38 × 8 =
4. 4.59 + 80 + 63 + 66 =
5. 5.471 + 87 =
6. 6.Best estimate of 197 × 6? (a) 2400 (b) 12000 (c) 120 (d) 1200
7. 7.20% of 130 =
8. 8.Best estimate of 72 × 68? (a) 49000 (b) 9800 (c) 490 (d) 4900
9. 9.156 × 4 =
10. 10.12 × 19 =
11. 11.15% of 380 =
12. 12.13 × 16 =
13. 13.145 − 77 =
14. 14.451 − 17 =
15. 15.432 − 28 =
16. 16.47 + 59 + 39 + 88 =
17. 17.5 + 6 + 1 + 4 =
18. 18.73 × 50 =
19. 19.200 ÷ 50 =
20. 20.₹58.85 + ₹39.35 =
21. 21.15% of 160 =
22. 22.Best estimate of 898 × 7? (a) 63000 (b) 12600 (c) 630 (d) 6300
23. 23.Check with nines: 92 × 88 = 8096. Correct or wrong? (a) correct (b) wrong
24. 24.₹31.10 + ₹49.20 =
25. 25.159 − 98 =
26. 26.91 × 50 =
27. 27.31² =
28. 28.73 + 58 + 51 + 25 =
29. 29.Check with nines: 70 × 77 = 5396. Correct or wrong? (a) correct (b) wrong
30. 30.15 × 18 =
31. 31.₹59.35 − ₹28.10 =
32. 32.4 + 5 + 5 + 5 + 3 =
33. 33.₹90.95 + ₹2.05 =
34. 34.5 × 15 =
35. 35.40 × 5 =
36. 36.128 × 4 =
37. 37.21 × 50 =
38. 38.390 ÷ 5 =
39. 39.9 + 2 + 9 + 5 + 1 =
40. 40.62 × 8 =

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