Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 218 · 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. 1.211 + 68 =
2. 2.127 × 4 =
3. 3.481 − 18 =
4. 4.262 − 46 =
5. 5.₹34.30 − ₹23.90 =
6. 6.₹39.30 + ₹3.30 =
7. 7.6 + 6 + 2 + 8 =
8. 8.Check with nines: 28 × 82 = 2296. Correct or wrong? (a) correct (b) wrong
9. 9.130 × 4 =
10. 10.Check with nines: 996 + 504 = 1500. Correct or wrong? (a) correct (b) wrong
11. 11.Check with nines: 27 × 39 = 1054. Correct or wrong? (a) wrong (b) correct
12. 12.16 × 15 =
13. 13.Check with nines: 423 + 283 = 698. Correct or wrong? (a) wrong (b) correct
14. 14.17 × 16 =
15. 15.298 + 28 =
16. 16.54 × 4 =
17. 17.84 + 36 + 40 + 69 =
18. 18.₹70.90 + ₹27.15 =
19. 19.42 × 8 =
20. 20.17 × 19 =
21. 21.19 × 15 =
22. 22.15% of 800 =
23. 23.13 × 15 =
24. 24.51 × 50 =
25. 25.10% of 430 =
26. 26.93 − 76 =
27. 27.424 + 57 =
28. 28.97 × 5 =
29. 29.5% of 250 =
30. 30.102 + 57 =
31. 31.287 + 98 =
32. 32.11 × 18 =
33. 33.89² =
34. 34.71² =
35. 35.59² =
36. 36.24 + 87 + 62 + 59 =
37. 37.Check with nines: 765 + 585 = 1346. Correct or wrong? (a) correct (b) wrong
38. 38.92 × 5 =
39. 39.₹20.15 + ₹5.20 =
40. 40.₹19.05 + ₹30.10 =

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