Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 287 · 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. 1.42 × 50 =
2. 2.Check with nines: 818 + 917 = 1735. Correct or wrong? (a) correct (b) wrong
3. 3.1950 ÷ 50 =
4. 4.Check with nines: 47 × 84 = 3955. Correct or wrong? (a) wrong (b) correct
5. 5.54 × 50 =
6. 6.₹13.30 + ₹13.85 =
7. 7.2 + 8 + 4 + 6 + 9 =
8. 8.38 + 82 + 61 + 69 =
9. 9.20% of 270 =
10. 10.32 × 5 =
11. 11.51 × 15 =
12. 12.Check with nines: 470 + 501 = 971. Correct or wrong? (a) correct (b) wrong
13. 13.55 + 85 + 70 + 67 =
14. 14.250 ÷ 25 =
15. 15.₹95.10 + ₹4.25 =
16. 16.Check with nines: 32 × 61 = 1946. Correct or wrong? (a) wrong (b) correct
17. 17.₹47.30 − ₹46.45 =
18. 18.12 × 15 =
19. 19.258 + 28 =
20. 20.13 × 15 =
21. 21.1500 ÷ 25 =
22. 22.Check with nines: 657 + 478 = 1135. Correct or wrong? (a) correct (b) wrong
23. 23.131 × 4 =
24. 24.547 − 17 =
25. 25.7 × 15 =
26. 26.71² =
27. 27.6 + 1 + 4 + 4 + 8 =
28. 28.₹49.95 + ₹3.10 =
29. 29.102 × 4 =
30. 30.17 + 63 + 81 + 12 =
31. 31.69² =
32. 32.273 − 17 =
33. 33.Best estimate of 79 × 41? (a) 6400 (b) 32000 (c) 3200 (d) 320
34. 34.₹25.40 + ₹23.85 =
35. 35.49² =
36. 36.₹40.25 + ₹10.40 =
37. 37.51 × 4 =
38. 38.19 × 11 =
39. 39.29² =
40. 40.125 − 66 =

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