Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 824 · 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. 1.295 + 39 =
2. 2.64 × 4 =
3. 3.524 − 38 =
4. 4.Check with nines: 88 × 59 = 5192. Correct or wrong? (a) wrong (b) correct
5. 5.25% of 180 =
6. 6.25% of 380 =
7. 7.1% of 800 =
8. 8.190 ÷ 5 =
9. 9.18 × 17 =
10. 10.1% of 620 =
11. 11.7 + 5 + 3 + 5 =
12. 12.29² =
13. 13.Best estimate of 799 × 3? (a) 2400 (b) 4800 (c) 24000 (d) 240
14. 14.29² =
15. 15.Check with nines: 67 × 77 = 5156. Correct or wrong? (a) correct (b) wrong
16. 16.18 × 16 =
17. 17.Best estimate of 498 × 9? (a) 9000 (b) 4500 (c) 450 (d) 45000
18. 18.1500 ÷ 50 =
19. 19.7 + 3 + 3 + 3 =
20. 20.587 − 98 =
21. 21.18 × 12 =
22. 22.515 − 26 =
23. 23.43 × 15 =
24. 24.₹21.05 + ₹13.55 =
25. 25.49 × 15 =
26. 26.4 + 8 + 2 + 6 + 1 =
27. 27.61 × 15 =
28. 28.Best estimate of 97 × 4? (a) 800 (b) 4000 (c) 400 (d) 40
29. 29.115 − 87 =
30. 30.492 + 79 =
31. 31.800 ÷ 25 =
32. 32.Best estimate of 51 × 28? (a) 150 (b) 3000 (c) 15000 (d) 1500
33. 33.36 × 15 =
34. 34.1 + 5 + 9 + 1 + 1 =
35. 35.15% of 140 =
36. 36.Check with nines: 55 × 82 = 4516. Correct or wrong? (a) correct (b) wrong
37. 37.457 − 88 =
38. 38.344 − 46 =
39. 39.1075 ÷ 25 =
40. 40.90 × 5 =

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