Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 561 · 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. 1.125 + 67 =
2. 2.165 + 77 =
3. 3.15 × 5 =
4. 4.Check with nines: 928 + 197 = 1125. Correct or wrong? (a) wrong (b) correct
5. 5.Best estimate of 102 × 5? (a) 5000 (b) 500 (c) 1000 (d) 50
6. 6.19 + 61 + 56 + 58 =
7. 7.38 × 50 =
8. 8.15% of 360 =
9. 9.13 + 45 + 40 + 38 =
10. 10.₹32.85 + ₹16.90 =
11. 11.15 × 15 =
12. 12.55 × 5 =
13. 13.33 × 50 =
14. 14.79² =
15. 15.21 × 5 =
16. 16.5 + 8 + 5 + 8 =
17. 17.20 × 50 =
18. 18.32 × 15 =
19. 19.395 + 87 =
20. 20.309 − 98 =
21. 21.650 ÷ 50 =
22. 22.Best estimate of 59 × 89? (a) 540 (b) 5400 (c) 54000 (d) 10800
23. 23.196 − 48 =
24. 24.14 × 15 =
25. 25.Check with nines: 723 + 782 = 1507. Correct or wrong? (a) wrong (b) correct
26. 26.₹27.30 − ₹16.25 =
27. 27.₹43.95 − ₹43.20 =
28. 28.91² =
29. 29.15% of 360 =
30. 30.23 + 57 + 45 + 88 =
31. 31.177 − 49 =
32. 32.168 − 59 =
33. 33.73 × 4 =
34. 34.10% of 700 =
35. 35.539 − 87 =
36. 36.8 + 2 + 1 + 4 =
37. 37.15 × 15 =
38. 38.490 + 68 =
39. 39.105 + 19 =
40. 40.1350 ÷ 50 =

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