Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 245 · 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. 1.5 + 6 + 3 + 4 =
2. 2.16 × 8 =
3. 3.Check with nines: 753 + 254 = 1013. Correct or wrong? (a) wrong (b) correct
4. 4.454 − 86 =
5. 5.2 + 1 + 3 + 7 + 6 =
6. 6.3 + 2 + 6 + 6 + 4 =
7. 7.₹76.60 − ₹43.15 =
8. 8.8 + 4 + 6 + 5 + 6 =
9. 9.17 × 12 =
10. 10.160 × 4 =
11. 11.₹56.40 − ₹10.30 =
12. 12.8 + 6 + 3 + 2 + 2 =
13. 13.122 × 4 =
14. 14.7 + 8 + 8 + 4 + 2 =
15. 15.4 × 15 =
16. 16.₹15.25 + ₹37.50 =
17. 17.6 + 4 + 9 + 4 =
18. 18.Best estimate of 199 × 5? (a) 10000 (b) 2000 (c) 100 (d) 1000
19. 19.19² =
20. 20.166 − 88 =
21. 21.49² =
22. 22.90 × 5 =
23. 23.15 × 13 =
24. 24.32 × 8 =
25. 25.35 + 57 + 48 + 75 =
26. 26.₹51.85 − ₹32.85 =
27. 27.535 ÷ 5 =
28. 28.26 + 57 + 75 + 20 =
29. 29.₹99.35 − ₹21.30 =
30. 30.Best estimate of 91 × 89? (a) 81000 (b) 8100 (c) 810 (d) 16200
31. 31.60 × 15 =
32. 32.25% of 830 =
33. 33.227 + 89 =
34. 34.543 − 27 =
35. 35.Best estimate of 52 × 59? (a) 3000 (b) 6000 (c) 300 (d) 30000
36. 36.Check with nines: 78 × 84 = 6552. Correct or wrong? (a) wrong (b) correct
37. 37.69 − 39 =
38. 38.10% of 470 =
39. 39.15% of 80 =
40. 40.2 + 2 + 4 + 8 + 2 =

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