Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 546 · 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. 1.71 × 4 =
2. 2.13 × 15 =
3. 3.66 + 25 + 21 + 72 =
4. 4.31 × 15 =
5. 5.Best estimate of 22 × 28? (a) 60 (b) 1200 (c) 6000 (d) 600
6. 6.39 + 16 + 35 + 57 =
7. 7.56 + 47 =
8. 8.97 − 68 =
9. 9.₹99.40 + ₹45.90 =
10. 10.553 − 66 =
11. 11.Check with nines: 931 + 759 = 1690. Correct or wrong? (a) correct (b) wrong
12. 12.185 ÷ 5 =
13. 13.16 × 11 =
14. 14.10% of 570 =
15. 15.₹91.15 − ₹30.80 =
16. 16.176 − 77 =
17. 17.Best estimate of 197 × 8? (a) 160 (b) 1600 (c) 16000 (d) 3200
18. 18.₹74.85 + ₹10.80 =
19. 19.9 + 1 + 6 + 1 =
20. 20.44 × 15 =
21. 21.Best estimate of 298 × 4? (a) 120 (b) 1200 (c) 2400 (d) 12000
22. 22.59² =
23. 23.105 ÷ 5 =
24. 24.388 + 29 =
25. 25.Best estimate of 497 × 3? (a) 3000 (b) 1500 (c) 150 (d) 15000
26. 26.75 + 20 + 21 + 73 =
27. 27.117 + 77 =
28. 28.Check with nines: 34 × 18 = 616. Correct or wrong? (a) wrong (b) correct
29. 29.430 ÷ 5 =
30. 30.28 × 50 =
31. 31.355 ÷ 5 =
32. 32.303 + 38 =
33. 33.Best estimate of 801 × 7? (a) 560 (b) 5600 (c) 56000 (d) 11200
34. 34.10 × 15 =
35. 35.570 − 79 =
36. 36.79 + 14 + 27 + 33 =
37. 37.380 + 37 =
38. 38.15 × 15 =
39. 39.81² =
40. 40.66 × 5 =

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