Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 963 · 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. 1.23 × 4 =
2. 2.385 + 27 =
3. 3.400 ÷ 50 =
4. 4.4 × 15 =
5. 5.280 − 87 =
6. 6.59 + 40 + 81 + 70 =
7. 7.49² =
8. 8.569 − 36 =
9. 9.2 + 3 + 7 + 8 =
10. 10.3 + 9 + 9 + 7 =
11. 11.700 ÷ 50 =
12. 12.18 × 15 =
13. 13.4 + 2 + 6 + 4 + 9 =
14. 14.51 × 8 =
15. 15.62 × 50 =
16. 16.Check with nines: 98 × 43 = 4214. Correct or wrong? (a) wrong (b) correct
17. 17.73 × 5 =
18. 18.1 + 7 + 5 + 3 =
19. 19.20 × 15 =
20. 20.54 + 37 + 34 + 58 =
21. 21.18 × 15 =
22. 22.17 × 13 =
23. 23.Best estimate of 402 × 7? (a) 280 (b) 2800 (c) 5600 (d) 28000
24. 24.Best estimate of 19 × 58? (a) 120 (b) 12000 (c) 2400 (d) 1200
25. 25.30 + 48 =
26. 26.29² =
27. 27.Best estimate of 103 × 6? (a) 6000 (b) 1200 (c) 600 (d) 60
28. 28.₹85.15 − ₹11.50 =
29. 29.20% of 300 =
30. 30.₹37.40 + ₹42.75 =
31. 31.31² =
32. 32.51² =
33. 33.3 + 7 + 9 + 7 + 2 =
34. 34.Check with nines: 338 + 814 = 1152. Correct or wrong? (a) correct (b) wrong
35. 35.9 + 3 + 6 + 7 =
36. 36.46 + 27 + 61 + 76 =
37. 37.20% of 200 =
38. 38.Check with nines: 849 + 455 = 1304. Correct or wrong? (a) wrong (b) correct
39. 39.19 × 5 =
40. 40.39 × 15 =

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