Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 803 · 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.Check with nines: 699 + 872 = 1575. Correct or wrong? (a) correct (b) wrong
2. 2.100 ÷ 5 =
3. 3.275 ÷ 5 =
4. 4.₹19.15 + ₹41.25 =
5. 5.61 × 5 =
6. 6.12 × 11 =
7. 7.148 × 4 =
8. 8.Best estimate of 399 × 3? (a) 12000 (b) 2400 (c) 1200 (d) 120
9. 9.121 − 57 =
10. 10.162 + 87 =
11. 11.₹29.25 − ₹5.65 =
12. 12.2 + 1 + 9 + 5 =
13. 13.26 × 15 =
14. 14.45 × 8 =
15. 15.₹40.30 + ₹38.20 =
16. 16.Check with nines: 867 + 903 = 1770. Correct or wrong? (a) correct (b) wrong
17. 17.62 × 15 =
18. 18.Check with nines: 22 × 29 = 640. Correct or wrong? (a) wrong (b) correct
19. 19.20% of 80 =
20. 20.3 + 7 + 5 + 4 =
21. 21.₹40.40 − ₹11.85 =
22. 22.5% of 590 =
23. 23.10% of 320 =
24. 24.22 × 5 =
25. 25.15% of 70 =
26. 26.20 × 15 =
27. 27.Best estimate of 503 × 8? (a) 400 (b) 8000 (c) 40000 (d) 4000
28. 28.Best estimate of 799 × 8? (a) 6400 (b) 64000 (c) 640 (d) 12800
29. 29.48 × 15 =
30. 30.11 × 19 =
31. 31.60 × 15 =
32. 32.103 × 4 =
33. 33.2 + 4 + 8 + 8 + 9 =
34. 34.400 + 48 =
35. 35.7 + 9 + 4 + 3 =
36. 36.1% of 510 =
37. 37.330 ÷ 5 =
38. 38.5% of 540 =
39. 39.15 × 12 =
40. 40.315 ÷ 5 =

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