Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 855 · 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. 1.242 + 87 =
2. 2.31 + 13 + 76 + 11 =
3. 3.Check with nines: 54 × 39 = 2107. Correct or wrong? (a) wrong (b) correct
4. 4.28 × 8 =
5. 5.Check with nines: 668 + 311 = 979. Correct or wrong? (a) correct (b) wrong
6. 6.215 − 56 =
7. 7.194 − 36 =
8. 8.15% of 430 =
9. 9.₹16.45 + ₹26.25 =
10. 10.7 + 8 + 4 + 3 + 9 =
11. 11.71² =
12. 12.48 × 15 =
13. 13.Best estimate of 802 × 3? (a) 240 (b) 2400 (c) 4800 (d) 24000
14. 14.89² =
15. 15.₹46.50 − ₹41.45 =
16. 16.20% of 690 =
17. 17.300 ÷ 50 =
18. 18.58 × 15 =
19. 19.Best estimate of 902 × 3? (a) 270 (b) 5400 (c) 2700 (d) 27000
20. 20.1175 ÷ 25 =
21. 21.42 × 4 =
22. 22.275 ÷ 25 =
23. 23.14 + 64 + 24 + 44 =
24. 24.31 × 15 =
25. 25.73 + 67 =
26. 26.49² =
27. 27.28 × 8 =
28. 28.191 − 28 =
29. 29.10% of 340 =
30. 30.Best estimate of 498 × 8? (a) 8000 (b) 400 (c) 40000 (d) 4000
31. 31.431 + 79 =
32. 32.95 × 50 =
33. 33.Best estimate of 897 × 8? (a) 14400 (b) 720 (c) 72000 (d) 7200
34. 34.15 × 15 =
35. 35.1200 ÷ 50 =
36. 36.Best estimate of 297 × 3? (a) 9000 (b) 1800 (c) 90 (d) 900
37. 37.19 × 14 =
38. 38.22 + 13 + 13 + 69 =
39. 39.62 × 4 =
40. 40.140 ÷ 5 =

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