Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 36 · 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. 1.1 + 1 + 6 + 9 =
2. 2.457 + 48 =
3. 3.23 × 15 =
4. 4.Best estimate of 51 × 68? (a) 35000 (b) 7000 (c) 350 (d) 3500
5. 5.25% of 630 =
6. 6.8 + 2 + 3 + 8 =
7. 7.10% of 530 =
8. 8.62 + 15 + 79 + 85 =
9. 9.74 × 5 =
10. 10.18 × 18 =
11. 11.71² =
12. 12.157 − 96 =
13. 13.₹40.40 − ₹15.40 =
14. 14.Check with nines: 357 + 752 = 1109. Correct or wrong? (a) wrong (b) correct
15. 15.₹34.15 − ₹30.50 =
16. 16.1% of 570 =
17. 17.90 + 38 =
18. 18.17 × 15 =
19. 19.750 ÷ 25 =
20. 20.424 + 87 =
21. 21.Check with nines: 23 × 69 = 1587. Correct or wrong? (a) wrong (b) correct
22. 22.₹64.95 − ₹46.60 =
23. 23.194 + 49 =
24. 24.1 + 9 + 8 + 2 =
25. 25.17 × 8 =
26. 26.16 × 11 =
27. 27.17 × 19 =
28. 28.Check with nines: 41 × 31 = 1267. Correct or wrong? (a) correct (b) wrong
29. 29.490 − 67 =
30. 30.14 × 15 =
31. 31.511 − 39 =
32. 32.15% of 600 =
33. 33.14 × 19 =
34. 34.98 × 5 =
35. 35.Check with nines: 63 × 85 = 5350. Correct or wrong? (a) wrong (b) correct
36. 36.Check with nines: 289 + 272 = 561. Correct or wrong? (a) wrong (b) correct
37. 37.₹67.45 − ₹8.60 =
38. 38.4 + 8 + 4 + 5 + 2 =
39. 39.187 − 28 =
40. 40.5 + 1 + 8 + 4 + 9 =

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