Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 206 · 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: 683 + 525 = 1216. Correct or wrong? (a) wrong (b) correct
2. 2.₹27.95 + ₹45.90 =
3. 3.Check with nines: 930 + 696 = 1626. Correct or wrong? (a) wrong (b) correct
4. 4.49 + 18 + 50 + 60 =
5. 5.Check with nines: 142 + 232 = 374. Correct or wrong? (a) wrong (b) correct
6. 6.41² =
7. 7.66 + 38 + 26 + 68 =
8. 8.Check with nines: 46 × 89 = 4094. Correct or wrong? (a) correct (b) wrong
9. 9.20% of 900 =
10. 10.2 + 8 + 3 + 1 + 4 =
11. 11.79 × 4 =
12. 12.Check with nines: 159 + 311 = 477. Correct or wrong? (a) wrong (b) correct
13. 13.1950 ÷ 50 =
14. 14.38 × 15 =
15. 15.7 × 15 =
16. 16.Check with nines: 72 × 62 = 4464. Correct or wrong? (a) correct (b) wrong
17. 17.593 − 98 =
18. 18.75 + 81 + 85 + 24 =
19. 19.25% of 500 =
20. 20.75 × 8 =
21. 21.21 × 15 =
22. 22.₹49.90 − ₹39.45 =
23. 23.411 + 37 =
24. 24.379 + 98 =
25. 25.338 − 36 =
26. 26.306 + 58 =
27. 27.201 − 19 =
28. 28.₹47.75 − ₹22.90 =
29. 29.29 × 50 =
30. 30.25% of 220 =
31. 31.297 − 27 =
32. 32.5% of 110 =
33. 33.3 + 2 + 6 + 2 + 4 =
34. 34.4 + 2 + 8 + 5 + 5 =
35. 35.₹29.60 − ₹28.40 =
36. 36.25 + 63 + 54 + 89 =
37. 37.Best estimate of 403 × 6? (a) 24000 (b) 240 (c) 4800 (d) 2400
38. 38.274 + 49 =
39. 39.8 + 9 + 2 + 2 =
40. 40.585 − 97 =

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