Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 376 · 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. 1.165 − 78 =
2. 2.Best estimate of 502 × 4? (a) 200 (b) 20000 (c) 2000 (d) 4000
3. 3.5% of 410 =
4. 4.445 + 39 =
5. 5.60 × 50 =
6. 6.Best estimate of 38 × 79? (a) 320 (b) 6400 (c) 32000 (d) 3200
7. 7.70 + 49 + 89 + 17 =
8. 8.6 + 5 + 2 + 4 =
9. 9.22 + 64 + 35 + 11 =
10. 10.23 × 5 =
11. 11.18 × 4 =
12. 12.18 × 13 =
13. 13.925 ÷ 25 =
14. 14.289 − 48 =
15. 15.Check with nines: 82 × 67 = 5488. Correct or wrong? (a) correct (b) wrong
16. 16.Check with nines: 13 × 69 = 897. Correct or wrong? (a) correct (b) wrong
17. 17.17 × 50 =
18. 18.10% of 650 =
19. 19.69² =
20. 20.26 × 8 =
21. 21.418 + 37 =
22. 22.59 − 56 =
23. 23.10% of 850 =
24. 24.14 × 11 =
25. 25.3 + 9 + 2 + 8 =
26. 26.₹35.65 + ₹17.30 =
27. 27.273 − 18 =
28. 28.31² =
29. 29.11 × 13 =
30. 30.33 × 8 =
31. 31.593 − 77 =
32. 32.72 × 8 =
33. 33.172 − 77 =
34. 34.19 × 4 =
35. 35.Check with nines: 325 + 796 = 1121. Correct or wrong? (a) wrong (b) correct
36. 36.Best estimate of 803 × 8? (a) 12800 (b) 6400 (c) 64000 (d) 640
37. 37.500 − 77 =
38. 38.₹38.95 − ₹32.15 =
39. 39.158 − 46 =
40. 40.28 × 15 =

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