Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 164 · 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.Check with nines: 24 × 91 = 2180. Correct or wrong? (a) wrong (b) correct
2. 2.156 × 4 =
3. 3.625 ÷ 25 =
4. 4.91 × 50 =
5. 5.14 × 8 =
6. 6.184 − 89 =
7. 7.19 + 60 + 18 + 24 =
8. 8.₹95.80 + ₹16.75 =
9. 9.Best estimate of 202 × 7? (a) 2800 (b) 1400 (c) 14000 (d) 140
10. 10.755 ÷ 5 =
11. 11.65 × 5 =
12. 12.13 × 19 =
13. 13.Check with nines: 61 × 18 = 1098. Correct or wrong? (a) wrong (b) correct
14. 14.76 − 66 =
15. 15.₹47.45 − ₹41.90 =
16. 16.19 + 55 + 39 + 55 =
17. 17.₹79.05 + ₹22.15 =
18. 18.Best estimate of 802 × 4? (a) 32000 (b) 6400 (c) 320 (d) 3200
19. 19.108 + 58 =
20. 20.3 + 7 + 9 + 7 =
21. 21.73 × 8 =
22. 22.120 × 4 =
23. 23.286 + 88 =
24. 24.98 − 28 =
25. 25.18 × 8 =
26. 26.247 − 28 =
27. 27.26 × 15 =
28. 28.31 + 15 + 46 + 46 =
29. 29.₹41.50 − ₹41.20 =
30. 30.1175 ÷ 25 =
31. 31.Best estimate of 31 × 48? (a) 3000 (b) 1500 (c) 15000 (d) 150
32. 32.46 × 15 =
33. 33.Best estimate of 91 × 32? (a) 5400 (b) 27000 (c) 270 (d) 2700
34. 34.₹44.70 + ₹35.70 =
35. 35.1400 ÷ 50 =
36. 36.Best estimate of 798 × 6? (a) 480 (b) 9600 (c) 48000 (d) 4800
37. 37.15 × 12 =
38. 38.45 + 48 + 32 + 48 =
39. 39.800 ÷ 25 =
40. 40.311 − 88 =

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