Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 387 · 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 303 × 9? (a) 2700 (b) 27000 (c) 5400 (d) 270
2. 2.91² =
3. 3.70 ÷ 5 =
4. 4.20% of 490 =
5. 5.Best estimate of 698 × 3? (a) 4200 (b) 21000 (c) 2100 (d) 210
6. 6.Best estimate of 99 × 4? (a) 400 (b) 800 (c) 4000 (d) 40
7. 7.20% of 280 =
8. 8.50% of 820 =
9. 9.Best estimate of 79 × 81? (a) 12800 (b) 64000 (c) 6400 (d) 640
10. 10.94 × 5 =
11. 11.25% of 600 =
12. 12.581 − 18 =
13. 13.87 + 31 + 68 + 16 =
14. 14.21² =
15. 15.Check with nines: 276 + 810 = 1090. Correct or wrong? (a) correct (b) wrong
16. 16.17 × 5 =
17. 17.20% of 260 =
18. 18.432 − 26 =
19. 19.132 × 4 =
20. 20.5 + 5 + 4 + 3 =
21. 21.14 × 13 =
22. 22.1 + 7 + 4 + 1 + 3 =
23. 23.310 ÷ 5 =
24. 24.71 + 67 =
25. 25.68 × 50 =
26. 26.12 × 15 =
27. 27.₹25.20 + ₹8.15 =
28. 28.486 + 68 =
29. 29.126 + 19 =
30. 30.₹13.70 − ₹10.10 =
31. 31.14 + 73 + 69 + 83 =
32. 32.350 ÷ 25 =
33. 33.375 ÷ 5 =
34. 34.1 + 7 + 7 + 1 + 3 =
35. 35.65 + 40 + 36 + 89 =
36. 36.452 − 88 =
37. 37.11 × 16 =
38. 38.Best estimate of 103 × 7? (a) 700 (b) 7000 (c) 70 (d) 1400
39. 39.₹66.80 + ₹31.55 =
40. 40.307 − 16 =

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