Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 655 · 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. 1.86 − 57 =
2. 2.12 × 12 =
3. 3.9 + 6 + 8 + 4 + 6 =
4. 4.60 × 15 =
5. 5.50 × 15 =
6. 6.5% of 570 =
7. 7.91² =
8. 8.10% of 750 =
9. 9.₹52.30 − ₹39.40 =
10. 10.Check with nines: 498 + 769 = 1264. Correct or wrong? (a) wrong (b) correct
11. 11.68 × 50 =
12. 12.Check with nines: 272 + 608 = 887. Correct or wrong? (a) wrong (b) correct
13. 13.70 × 5 =
14. 14.39 × 15 =
15. 15.Best estimate of 303 × 4? (a) 12000 (b) 2400 (c) 1200 (d) 120
16. 16.31 + 11 + 33 + 69 =
17. 17.41 × 15 =
18. 18.₹97.55 + ₹37.20 =
19. 19.92 × 5 =
20. 20.Check with nines: 27 × 87 = 2349. Correct or wrong? (a) wrong (b) correct
21. 21.39 × 8 =
22. 22.20% of 620 =
23. 23.31² =
24. 24.5 + 1 + 6 + 5 =
25. 25.₹54.35 + ₹13.30 =
26. 26.₹69.45 + ₹47.40 =
27. 27.62 × 8 =
28. 28.1 + 2 + 1 + 9 =
29. 29.36 + 78 + 37 + 27 =
30. 30.Check with nines: 825 + 208 = 1033. Correct or wrong? (a) wrong (b) correct
31. 31.155 ÷ 5 =
32. 32.133 + 29 =
33. 33.19² =
34. 34.61² =
35. 35.375 ÷ 25 =
36. 36.Check with nines: 269 + 764 = 1033. Correct or wrong? (a) wrong (b) correct
37. 37.240 + 97 =
38. 38.₹81.20 + ₹28.45 =
39. 39.203 + 57 =
40. 40.610 ÷ 5 =

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