Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 740 · 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. 1.14 × 11 =
2. 2.22 + 33 + 62 + 32 =
3. 3.368 − 17 =
4. 4.42 + 77 + 85 + 25 =
5. 5.50% of 780 =
6. 6.Best estimate of 401 × 3? (a) 12000 (b) 2400 (c) 120 (d) 1200
7. 7.348 + 59 =
8. 8.Best estimate of 79 × 89? (a) 72000 (b) 720 (c) 7200 (d) 14400
9. 9.710 ÷ 5 =
10. 10.Check with nines: 834 + 182 = 1016. Correct or wrong? (a) correct (b) wrong
11. 11.Best estimate of 82 × 51? (a) 8000 (b) 4000 (c) 400 (d) 40000
12. 12.61² =
13. 13.13 × 13 =
14. 14.10% of 110 =
15. 15.51² =
16. 16.Best estimate of 302 × 7? (a) 4200 (b) 210 (c) 21000 (d) 2100
17. 17.₹88.70 − ₹35.30 =
18. 18.71² =
19. 19.158 + 97 =
20. 20.525 ÷ 25 =
21. 21.Best estimate of 203 × 9? (a) 180 (b) 3600 (c) 18000 (d) 1800
22. 22.18 × 19 =
23. 23.19 × 13 =
24. 24.59² =
25. 25.21² =
26. 26.81 + 84 + 67 + 70 =
27. 27.15 × 4 =
28. 28.Check with nines: 557 + 582 = 1139. Correct or wrong? (a) correct (b) wrong
29. 29.20% of 270 =
30. 30.Check with nines: 36 × 82 = 2952. Correct or wrong? (a) correct (b) wrong
31. 31.3 + 7 + 5 + 9 + 1 =
32. 32.Check with nines: 54 × 12 = 648. Correct or wrong? (a) wrong (b) correct
33. 33.15 × 12 =
34. 34.49² =
35. 35.5% of 540 =
36. 36.22 × 50 =
37. 37.372 + 69 =
38. 38.101 × 4 =
39. 39.Best estimate of 299 × 6? (a) 3600 (b) 180 (c) 1800 (d) 18000
40. 40.₹49.45 − ₹43.90 =

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