Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 685 · 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.Best estimate of 18 × 88? (a) 18000 (b) 1800 (c) 3600 (d) 180
2. 2.462 − 27 =
3. 3.83 × 5 =
4. 4.Best estimate of 82 × 51? (a) 400 (b) 8000 (c) 4000 (d) 40000
5. 5.222 − 98 =
6. 6.Best estimate of 498 × 3? (a) 15000 (b) 3000 (c) 150 (d) 1500
7. 7.45 × 15 =
8. 8.47 × 15 =
9. 9.15 × 50 =
10. 10.Check with nines: 17 × 72 = 1227. Correct or wrong? (a) correct (b) wrong
11. 11.157 × 4 =
12. 12.19² =
13. 13.4 + 3 + 7 + 3 =
14. 14.165 ÷ 5 =
15. 15.69² =
16. 16.1% of 60 =
17. 17.18 × 12 =
18. 18.169 + 19 =
19. 19.Best estimate of 697 × 4? (a) 28000 (b) 280 (c) 2800 (d) 5600
20. 20.34 × 5 =
21. 21.17 × 15 =
22. 22.17 × 17 =
23. 23.6 + 3 + 6 + 4 + 1 =
24. 24.₹19.10 + ₹13.10 =
25. 25.70 × 8 =
26. 26.36 + 58 + 57 + 19 =
27. 27.390 − 68 =
28. 28.₹59.30 + ₹32.45 =
29. 29.221 + 69 =
30. 30.Check with nines: 90 × 31 = 2794. Correct or wrong? (a) wrong (b) correct
31. 31.Check with nines: 292 + 765 = 1057. Correct or wrong? (a) correct (b) wrong
32. 32.46 × 8 =
33. 33.5 × 15 =
34. 34.₹45.35 + ₹38.15 =
35. 35.71 × 5 =
36. 36.14 × 50 =
37. 37.Best estimate of 202 × 8? (a) 160 (b) 1600 (c) 16000 (d) 3200
38. 38.Check with nines: 87 × 53 = 4611. Correct or wrong? (a) correct (b) wrong
39. 39.Check with nines: 24 × 37 = 885. Correct or wrong? (a) wrong (b) correct
40. 40.454 + 67 =

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