Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 581 · 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. 1.29² =
2. 2.45 × 8 =
3. 3.58 + 67 =
4. 4.25 + 32 + 64 + 17 =
5. 5.16 × 13 =
6. 6.25 × 15 =
7. 7.42 + 17 =
8. 8.41² =
9. 9.131 − 17 =
10. 10.18 × 4 =
11. 11.₹86.15 − ₹9.25 =
12. 12.20% of 380 =
13. 13.86 × 4 =
14. 14.13 × 14 =
15. 15.4 + 2 + 2 + 3 + 6 =
16. 16.34 × 15 =
17. 17.5% of 840 =
18. 18.Best estimate of 59 × 48? (a) 3000 (b) 6000 (c) 300 (d) 30000
19. 19.19 + 75 + 64 + 48 =
20. 20.13 × 50 =
21. 21.486 + 59 =
22. 22.403 − 77 =
23. 23.83 + 17 + 36 + 25 =
24. 24.125 ÷ 5 =
25. 25.Best estimate of 88 × 22? (a) 18000 (b) 1800 (c) 180 (d) 3600
26. 26.₹50.65 − ₹29.90 =
27. 27.Check with nines: 612 + 894 = 1506. Correct or wrong? (a) wrong (b) correct
28. 28.112 − 28 =
29. 29.166 + 78 =
30. 30.9 + 9 + 8 + 1 =
31. 31.Check with nines: 68 × 44 = 2992. Correct or wrong? (a) wrong (b) correct
32. 32.11 × 19 =
33. 33.Check with nines: 64 × 44 = 2821. Correct or wrong? (a) wrong (b) correct
34. 34.645 ÷ 5 =
35. 35.Best estimate of 22 × 68? (a) 2800 (b) 140 (c) 14000 (d) 1400
36. 36.72 + 83 + 26 + 29 =
37. 37.91 × 50 =
38. 38.15 × 12 =
39. 39.1000 ÷ 25 =
40. 40.Best estimate of 41 × 82? (a) 6400 (b) 3200 (c) 320 (d) 32000

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