Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 956 · 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.₹55.70 − ₹37.55 =
2. 2.11 × 11 =
3. 3.₹78.10 + ₹30.20 =
4. 4.525 ÷ 25 =
5. 5.1% of 450 =
6. 6.Check with nines: 329 + 847 = 1173. Correct or wrong? (a) correct (b) wrong
7. 7.20 × 5 =
8. 8.1 + 3 + 7 + 3 =
9. 9.13 × 18 =
10. 10.440 − 47 =
11. 11.230 + 37 =
12. 12.1 + 5 + 1 + 9 =
13. 13.Best estimate of 29 × 29? (a) 9000 (b) 1800 (c) 900 (d) 90
14. 14.18 × 15 =
15. 15.74 × 5 =
16. 16.16 + 57 + 70 + 64 =
17. 17.3 + 4 + 8 + 2 + 9 =
18. 18.7 + 6 + 4 + 3 =
19. 19.Best estimate of 61 × 81? (a) 9600 (b) 4800 (c) 48000 (d) 480
20. 20.7 + 3 + 5 + 6 + 5 =
21. 21.52 + 98 =
22. 22.575 ÷ 25 =
23. 23.Best estimate of 28 × 61? (a) 3600 (b) 180 (c) 1800 (d) 18000
24. 24.18 × 15 =
25. 25.₹81.15 − ₹40.30 =
26. 26.₹36.05 + ₹46.95 =
27. 27.50 × 15 =
28. 28.29 + 63 + 66 + 25 =
29. 29.2 + 5 + 5 + 8 + 2 =
30. 30.44 × 8 =
31. 31.Check with nines: 28 × 13 = 364. Correct or wrong? (a) wrong (b) correct
32. 32.34 × 4 =
33. 33.368 + 79 =
34. 34.6 + 4 + 5 + 9 + 1 =
35. 35.10% of 270 =
36. 36.₹73.60 + ₹43.70 =
37. 37.388 − 56 =
38. 38.33 + 61 + 41 + 74 =
39. 39.69² =
40. 40.20 × 15 =

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