Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 195 · 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.₹85.15 − ₹47.70 =
2. 2.37 × 4 =
3. 3.Best estimate of 62 × 42? (a) 2400 (b) 24000 (c) 240 (d) 4800
4. 4.Best estimate of 499 × 6? (a) 30000 (b) 300 (c) 6000 (d) 3000
5. 5.48 + 52 + 48 + 85 =
6. 6.40 × 5 =
7. 7.18 × 4 =
8. 8.Best estimate of 72 × 18? (a) 140 (b) 2800 (c) 14000 (d) 1400
9. 9.153 − 96 =
10. 10.8 + 1 + 5 + 9 + 1 =
11. 11.218 − 29 =
12. 12.30 + 40 + 59 + 15 =
13. 13.₹66.45 + ₹12.05 =
14. 14.20% of 590 =
15. 15.31² =
16. 16.30 × 15 =
17. 17.Check with nines: 68 × 17 = 1158. Correct or wrong? (a) wrong (b) correct
18. 18.79² =
19. 19.5% of 500 =
20. 20.81² =
21. 21.₹88.80 + ₹4.25 =
22. 22.6 × 15 =
23. 23.1% of 650 =
24. 24.242 − 38 =
25. 25.41 + 29 + 49 + 29 =
26. 26.Best estimate of 62 × 29? (a) 3600 (b) 18000 (c) 180 (d) 1800
27. 27.13 × 4 =
28. 28.Check with nines: 67 × 35 = 2349. Correct or wrong? (a) wrong (b) correct
29. 29.15% of 250 =
30. 30.2 + 1 + 8 + 3 + 7 =
31. 31.118 + 17 =
32. 32.39 × 50 =
33. 33.61² =
34. 34.Best estimate of 798 × 9? (a) 7200 (b) 72000 (c) 14400 (d) 720
35. 35.Check with nines: 126 + 836 = 961. Correct or wrong? (a) wrong (b) correct
36. 36.₹91.35 − ₹12.50 =
37. 37.17 × 12 =
38. 38.80 ÷ 5 =
39. 39.42 × 5 =
40. 40.Best estimate of 902 × 8? (a) 720 (b) 14400 (c) 72000 (d) 7200

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