Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 132 · 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. 1.17 × 17 =
2. 2.7 + 7 + 2 + 1 + 3 =
3. 3.54 + 67 + 25 + 81 =
4. 4.13 × 13 =
5. 5.755 ÷ 5 =
6. 6.Check with nines: 780 + 474 = 1250. Correct or wrong? (a) wrong (b) correct
7. 7.21² =
8. 8.5 + 2 + 5 + 4 + 5 =
9. 9.59² =
10. 10.Check with nines: 28 × 27 = 755. Correct or wrong? (a) correct (b) wrong
11. 11.15% of 170 =
12. 12.25 × 4 =
13. 13.Best estimate of 49 × 18? (a) 2000 (b) 10000 (c) 100 (d) 1000
14. 14.83 + 88 + 73 + 57 =
15. 15.3 + 3 + 7 + 7 =
16. 16.8 + 6 + 1 + 4 + 2 =
17. 17.300 ÷ 25 =
18. 18.Best estimate of 899 × 7? (a) 6300 (b) 630 (c) 12600 (d) 63000
19. 19.71² =
20. 20.575 ÷ 5 =
21. 21.366 − 98 =
22. 22.Check with nines: 154 + 163 = 317. Correct or wrong? (a) wrong (b) correct
23. 23.1% of 20 =
24. 24.Check with nines: 268 + 558 = 826. Correct or wrong? (a) correct (b) wrong
25. 25.₹72.05 − ₹48.20 =
26. 26.285 + 28 =
27. 27.15% of 70 =
28. 28.20% of 880 =
29. 29.61 + 49 =
30. 30.Best estimate of 42 × 89? (a) 36000 (b) 360 (c) 7200 (d) 3600
31. 31.₹18.90 + ₹2.65 =
32. 32.Check with nines: 17 × 13 = 219. Correct or wrong? (a) correct (b) wrong
33. 33.₹24.50 − ₹7.85 =
34. 34.9 + 1 + 1 + 5 + 3 =
35. 35.18 × 4 =
36. 36.1 + 9 + 2 + 7 + 9 =
37. 37.₹81.95 + ₹27.90 =
38. 38.9 + 7 + 4 + 1 =
39. 39.164 + 97 =
40. 40.196 − 98 =

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