Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 205 · 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. 1.77 − 66 =
2. 2.391 − 16 =
3. 3.13 × 16 =
4. 4.17 × 13 =
5. 5.14 × 18 =
6. 6.19² =
7. 7.82 × 4 =
8. 8.131 − 19 =
9. 9.222 + 38 =
10. 10.50% of 660 =
11. 11.5 + 5 + 2 + 6 + 9 =
12. 12.Check with nines: 13 × 97 = 1261. Correct or wrong? (a) wrong (b) correct
13. 13.116 + 38 =
14. 14.362 − 46 =
15. 15.₹59.70 + ₹13.65 =
16. 16.325 ÷ 25 =
17. 17.116 × 4 =
18. 18.1850 ÷ 50 =
19. 19.Best estimate of 32 × 88? (a) 2700 (b) 270 (c) 27000 (d) 5400
20. 20.7 + 3 + 2 + 4 =
21. 21.481 − 96 =
22. 22.11 × 19 =
23. 23.Check with nines: 574 + 918 = 1490. Correct or wrong? (a) correct (b) wrong
24. 24.Best estimate of 32 × 58? (a) 18000 (b) 180 (c) 1800 (d) 3600
25. 25.2 + 4 + 2 + 8 =
26. 26.₹88.05 + ₹32.55 =
27. 27.389 − 19 =
28. 28.76 + 43 + 11 + 46 =
29. 29.22 + 58 + 88 + 51 =
30. 30.11 × 15 =
31. 31.240 − 89 =
32. 32.56 × 8 =
33. 33.₹38.20 − ₹34.45 =
34. 34.5 + 9 + 3 + 2 + 7 =
35. 35.48 + 45 + 39 + 37 =
36. 36.23 × 8 =
37. 37.10% of 50 =
38. 38.69² =
39. 39.Check with nines: 32 × 49 = 1568. Correct or wrong? (a) correct (b) wrong
40. 40.3 + 2 + 2 + 2 + 7 =

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