Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 860 · 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 18 × 48? (a) 10000 (b) 100 (c) 1000 (d) 2000
2. 2.650 ÷ 50 =
3. 3.21 + 16 + 32 + 24 =
4. 4.20% of 620 =
5. 5.550 ÷ 50 =
6. 6.12 × 15 =
7. 7.489 − 87 =
8. 8.574 − 66 =
9. 9.375 ÷ 25 =
10. 10.20 + 27 + 31 + 70 =
11. 11.Check with nines: 61 × 12 = 731. Correct or wrong? (a) wrong (b) correct
12. 12.132 − 47 =
13. 13.Best estimate of 72 × 49? (a) 7000 (b) 35000 (c) 3500 (d) 350
14. 14.45 × 50 =
15. 15.293 + 28 =
16. 16.404 + 29 =
17. 17.Check with nines: 576 + 741 = 1320. Correct or wrong? (a) correct (b) wrong
18. 18.162 − 76 =
19. 19.139 × 4 =
20. 20.13 + 73 + 86 + 47 =
21. 21.Best estimate of 102 × 5? (a) 50 (b) 500 (c) 1000 (d) 5000
22. 22.17 × 4 =
23. 23.154 + 47 =
24. 24.Best estimate of 399 × 9? (a) 7200 (b) 36000 (c) 360 (d) 3600
25. 25.₹7.15 + ₹7.10 =
26. 26.65 ÷ 5 =
27. 27.Check with nines: 494 + 378 = 872. Correct or wrong? (a) wrong (b) correct
28. 28.574 − 99 =
29. 29.465 + 37 =
30. 30.₹46.25 + ₹39.40 =
31. 31.15% of 340 =
32. 32.7 + 4 + 6 + 1 =
33. 33.15 × 11 =
34. 34.11 × 17 =
35. 35.41² =
36. 36.1750 ÷ 50 =
37. 37.12 × 18 =
38. 38.37 × 15 =
39. 39.45 + 24 + 39 + 38 =
40. 40.71² =

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