Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 721 · 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.Best estimate of 899 × 3? (a) 270 (b) 2700 (c) 27000 (d) 5400
2. 2.15 × 15 =
3. 3.279 − 78 =
4. 4.51² =
5. 5.680 ÷ 5 =
6. 6.11 × 12 =
7. 7.₹35.35 − ₹20.05 =
8. 8.156 − 66 =
9. 9.35 × 15 =
10. 10.69 × 50 =
11. 11.7 + 5 + 3 + 7 =
12. 12.₹18.10 − ₹4.85 =
13. 13.3 + 6 + 4 + 1 =
14. 14.7 + 3 + 9 + 7 + 8 =
15. 15.8 + 8 + 4 + 2 =
16. 16.39 + 99 =
17. 17.6 × 15 =
18. 18.Check with nines: 517 + 219 = 736. Correct or wrong? (a) wrong (b) correct
19. 19.312 − 19 =
20. 20.135 + 29 =
21. 21.153 × 4 =
22. 22.472 + 57 =
23. 23.85 + 15 + 47 + 25 =
24. 24.Check with nines: 61 × 53 = 3233. Correct or wrong? (a) correct (b) wrong
25. 25.73 + 19 + 56 + 22 =
26. 26.51² =
27. 27.340 + 48 =
28. 28.54 × 50 =
29. 29.1350 ÷ 50 =
30. 30.Best estimate of 402 × 3? (a) 120 (b) 12000 (c) 1200 (d) 2400
31. 31.Check with nines: 70 × 16 = 1118. Correct or wrong? (a) wrong (b) correct
32. 32.Check with nines: 74 × 31 = 2295. Correct or wrong? (a) correct (b) wrong
33. 33.25% of 870 =
34. 34.₹29.90 + ₹6.60 =
35. 35.2 + 9 + 8 + 2 + 1 =
36. 36.Check with nines: 238 + 420 = 659. Correct or wrong? (a) wrong (b) correct
37. 37.14 × 17 =
38. 38.10% of 580 =
39. 39.27 × 15 =
40. 40.137 − 19 =

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