Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 708 · 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. 1.5% of 450 =
2. 2.Best estimate of 299 × 6? (a) 1800 (b) 180 (c) 18000 (d) 3600
3. 3.₹10.15 + ₹20.05 =
4. 4.16 × 19 =
5. 5.14 × 18 =
6. 6.386 + 67 =
7. 7.Best estimate of 302 × 9? (a) 270 (b) 2700 (c) 27000 (d) 5400
8. 8.37 × 50 =
9. 9.Best estimate of 901 × 4? (a) 7200 (b) 3600 (c) 36000 (d) 360
10. 10.305 ÷ 5 =
11. 11.17 × 11 =
12. 12.58 × 5 =
13. 13.94 × 5 =
14. 14.92 − 57 =
15. 15.39 × 50 =
16. 16.190 ÷ 5 =
17. 17.37 × 15 =
18. 18.400 ÷ 50 =
19. 19.14 × 12 =
20. 20.36 + 81 + 66 + 14 =
21. 21.Best estimate of 503 × 7? (a) 35000 (b) 7000 (c) 3500 (d) 350
22. 22.Check with nines: 335 + 516 = 851. Correct or wrong? (a) correct (b) wrong
23. 23.96 × 4 =
24. 24.1600 ÷ 50 =
25. 25.2 + 9 + 1 + 3 =
26. 26.2 + 8 + 3 + 6 + 1 =
27. 27.400 + 49 =
28. 28.₹34.15 + ₹46.20 =
29. 29.218 − 28 =
30. 30.1050 ÷ 25 =
31. 31.30 × 15 =
32. 32.12 × 50 =
33. 33.57 × 50 =
34. 34.1 + 5 + 1 + 9 + 9 =
35. 35.Check with nines: 19 × 14 = 266. Correct or wrong? (a) wrong (b) correct
36. 36.Best estimate of 78 × 82? (a) 640 (b) 64000 (c) 12800 (d) 6400
37. 37.47 + 23 + 59 + 67 =
38. 38.19² =
39. 39.57 × 8 =
40. 40.Best estimate of 31 × 18? (a) 600 (b) 6000 (c) 60 (d) 1200

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