Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 670 · 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. 1.111 + 88 =
2. 2.54 × 8 =
3. 3.49² =
4. 4.21² =
5. 5.Check with nines: 923 + 740 = 1663. Correct or wrong? (a) correct (b) wrong
6. 6.₹30.55 − ₹28.75 =
7. 7.128 − 99 =
8. 8.15% of 670 =
9. 9.1% of 400 =
10. 10.66 × 4 =
11. 11.50% of 680 =
12. 12.39 × 50 =
13. 13.19 × 13 =
14. 14.8 + 2 + 9 + 9 + 8 =
15. 15.4 + 5 + 5 + 1 =
16. 16.₹6.70 + ₹15.35 =
17. 17.Check with nines: 52 × 45 = 2348. Correct or wrong? (a) correct (b) wrong
18. 18.15% of 60 =
19. 19.14 + 23 + 26 + 46 =
20. 20.Check with nines: 200 + 991 = 1192. Correct or wrong? (a) wrong (b) correct
21. 21.143 × 4 =
22. 22.317 − 58 =
23. 23.14 × 17 =
24. 24.79² =
25. 25.107 − 28 =
26. 26.89 × 5 =
27. 27.Check with nines: 289 + 630 = 912. Correct or wrong? (a) wrong (b) correct
28. 28.₹47.10 + ₹11.15 =
29. 29.25 × 15 =
30. 30.Check with nines: 54 × 43 = 2322. Correct or wrong? (a) wrong (b) correct
31. 31.4 × 15 =
32. 32.Best estimate of 903 × 9? (a) 810 (b) 16200 (c) 8100 (d) 81000
33. 33.81² =
34. 34.5% of 310 =
35. 35.Best estimate of 59 × 51? (a) 30000 (b) 6000 (c) 3000 (d) 300
36. 36.28 × 15 =
37. 37.Best estimate of 903 × 5? (a) 450 (b) 9000 (c) 4500 (d) 45000
38. 38.57 × 8 =
39. 39.415 ÷ 5 =
40. 40.25% of 750 =

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths