Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 662 · 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. 1.383 + 67 =
2. 2.Check with nines: 14 × 95 = 1332. Correct or wrong? (a) wrong (b) correct
3. 3.8 + 8 + 2 + 2 =
4. 4.536 − 49 =
5. 5.34 × 5 =
6. 6.176 + 58 =
7. 7.464 − 28 =
8. 8.Check with nines: 529 + 961 = 1488. Correct or wrong? (a) correct (b) wrong
9. 9.1 + 4 + 8 + 2 =
10. 10.218 + 68 =
11. 11.10 × 15 =
12. 12.46 + 60 + 61 + 84 =
13. 13.16 × 18 =
14. 14.Check with nines: 504 + 409 = 913. Correct or wrong? (a) wrong (b) correct
15. 15.₹36.55 − ₹11.05 =
16. 16.10% of 680 =
17. 17.15 × 8 =
18. 18.Best estimate of 78 × 18? (a) 3200 (b) 1600 (c) 160 (d) 16000
19. 19.₹48.60 − ₹45.30 =
20. 20.Check with nines: 897 + 715 = 1612. Correct or wrong? (a) wrong (b) correct
21. 21.12 × 19 =
22. 22.₹32.45 + ₹10.30 =
23. 23.24 × 15 =
24. 24.1900 ÷ 50 =
25. 25.45 + 41 + 48 + 81 =
26. 26.25% of 310 =
27. 27.66 × 5 =
28. 28.Best estimate of 299 × 4? (a) 120 (b) 12000 (c) 1200 (d) 2400
29. 29.248 − 58 =
30. 30.30 × 8 =
31. 31.49 × 5 =
32. 32.238 − 37 =
33. 33.7 + 3 + 4 + 3 =
34. 34.380 + 79 =
35. 35.510 ÷ 5 =
36. 36.160 − 86 =
37. 37.51² =
38. 38.69² =
39. 39.11 × 14 =
40. 40.357 − 49 =

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