Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 544 · 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.₹93.10 + ₹44.60 =
2. 2.₹40.45 − ₹34.25 =
3. 3.₹8.30 + ₹4.80 =
4. 4.56 × 5 =
5. 5.825 ÷ 25 =
6. 6.74 × 4 =
7. 7.128 + 68 =
8. 8.31 + 11 + 18 + 60 =
9. 9.482 − 49 =
10. 10.₹39.50 + ₹37.25 =
11. 11.18 × 50 =
12. 12.41² =
13. 13.Best estimate of 18 × 41? (a) 800 (b) 1600 (c) 80 (d) 8000
14. 14.Best estimate of 62 × 88? (a) 5400 (b) 54000 (c) 10800 (d) 540
15. 15.62 × 4 =
16. 16.240 + 27 =
17. 17.Best estimate of 798 × 8? (a) 64000 (b) 6400 (c) 640 (d) 12800
18. 18.Check with nines: 24 × 43 = 1032. Correct or wrong? (a) wrong (b) correct
19. 19.40 × 8 =
20. 20.Best estimate of 42 × 18? (a) 8000 (b) 1600 (c) 800 (d) 80
21. 21.483 + 29 =
22. 22.78 × 50 =
23. 23.12 + 44 + 13 + 64 =
24. 24.8 + 5 + 2 + 8 + 2 =
25. 25.36 × 15 =
26. 26.Best estimate of 89 × 59? (a) 54000 (b) 5400 (c) 540 (d) 10800
27. 27.9 + 9 + 5 + 1 =
28. 28.50% of 820 =
29. 29.215 + 19 =
30. 30.47 + 64 + 57 + 77 =
31. 31.₹83.05 − ₹16.15 =
32. 32.15% of 320 =
33. 33.88 × 4 =
34. 34.466 + 17 =
35. 35.382 + 39 =
36. 36.Best estimate of 39 × 52? (a) 20000 (b) 200 (c) 4000 (d) 2000
37. 37.425 ÷ 25 =
38. 38.120 − 36 =
39. 39.68 + 72 + 20 + 63 =
40. 40.25% of 360 =

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