Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 876 · 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.₹17.30 − ₹7.85 =
2. 2.13 × 14 =
3. 3.12 + 36 + 37 + 24 =
4. 4.1900 ÷ 50 =
5. 5.410 + 88 =
6. 6.Best estimate of 597 × 7? (a) 8400 (b) 420 (c) 4200 (d) 42000
7. 7.70 ÷ 5 =
8. 8.66 + 28 + 34 + 88 =
9. 9.₹30.05 − ₹17.65 =
10. 10.Check with nines: 814 + 763 = 1575. Correct or wrong? (a) wrong (b) correct
11. 11.21² =
12. 12.591 − 88 =
13. 13.80 + 31 + 54 + 62 =
14. 14.₹28.20 + ₹2.50 =
15. 15.18 × 15 =
16. 16.Best estimate of 403 × 8? (a) 320 (b) 6400 (c) 32000 (d) 3200
17. 17.16 × 50 =
18. 18.24 × 15 =
19. 19.Check with nines: 893 + 330 = 1223. Correct or wrong? (a) correct (b) wrong
20. 20.Check with nines: 59 × 38 = 2248. Correct or wrong? (a) correct (b) wrong
21. 21.39 + 50 + 45 + 48 =
22. 22.29² =
23. 23.Best estimate of 97 × 9? (a) 900 (b) 9000 (c) 1800 (d) 90
24. 24.9 + 9 + 2 + 1 =
25. 25.13 × 15 =
26. 26.575 ÷ 5 =
27. 27.73 × 8 =
28. 28.272 − 66 =
29. 29.66 + 18 =
30. 30.975 ÷ 25 =
31. 31.20 × 5 =
32. 32.47 × 15 =
33. 33.1800 ÷ 50 =
34. 34.252 − 79 =
35. 35.Best estimate of 21 × 68? (a) 1400 (b) 2800 (c) 14000 (d) 140
36. 36.15% of 870 =
37. 37.6 + 4 + 4 + 8 + 2 =
38. 38.28 × 50 =
39. 39.Best estimate of 203 × 4? (a) 80 (b) 800 (c) 8000 (d) 1600
40. 40.₹33.50 − ₹9.70 =

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