Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 792 · 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. 1.13 × 11 =
2. 2.30 × 15 =
3. 3.₹23.75 + ₹27.10 =
4. 4.Best estimate of 401 × 8? (a) 320 (b) 3200 (c) 32000 (d) 6400
5. 5.339 + 58 =
6. 6.5% of 820 =
7. 7.325 ÷ 25 =
8. 8.468 + 69 =
9. 9.79² =
10. 10.12 × 11 =
11. 11.189 + 39 =
12. 12.Best estimate of 42 × 52? (a) 200 (b) 20000 (c) 4000 (d) 2000
13. 13.Best estimate of 89 × 69? (a) 6300 (b) 63000 (c) 12600 (d) 630
14. 14.49² =
15. 15.Check with nines: 30 × 76 = 2281. Correct or wrong? (a) correct (b) wrong
16. 16.25% of 760 =
17. 17.1% of 50 =
18. 18.350 ÷ 50 =
19. 19.775 ÷ 25 =
20. 20.200 ÷ 25 =
21. 21.2 + 3 + 9 + 7 =
22. 22.131 + 27 =
23. 23.303 − 38 =
24. 24.36 × 8 =
25. 25.5 + 8 + 5 + 2 + 1 =
26. 26.Check with nines: 541 + 917 = 1450. Correct or wrong? (a) correct (b) wrong
27. 27.26 × 8 =
28. 28.53 × 4 =
29. 29.5 + 2 + 8 + 2 =
30. 30.127 × 4 =
31. 31.₹41.55 − ₹29.30 =
32. 32.593 − 49 =
33. 33.9 + 3 + 7 + 3 =
34. 34.32 × 8 =
35. 35.46 × 4 =
36. 36.88 + 77 + 59 + 16 =
37. 37.Check with nines: 962 + 988 = 1952. Correct or wrong? (a) wrong (b) correct
38. 38.84 + 30 + 22 + 61 =
39. 39.Best estimate of 98 × 9? (a) 9000 (b) 90 (c) 900 (d) 1800
40. 40.27 × 50 =

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