Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 918 · 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. 1.49² =
2. 2.Best estimate of 197 × 4? (a) 80 (b) 1600 (c) 800 (d) 8000
3. 3.₹82.50 − ₹30.20 =
4. 4.108 + 18 =
5. 5.1100 ÷ 50 =
6. 6.650 ÷ 50 =
7. 7.79² =
8. 8.4 + 1 + 6 + 5 + 9 =
9. 9.317 + 18 =
10. 10.79² =
11. 11.Check with nines: 225 + 685 = 910. Correct or wrong? (a) wrong (b) correct
12. 12.80 + 89 + 86 + 59 =
13. 13.₹8.85 + ₹7.80 =
14. 14.505 ÷ 5 =
15. 15.Check with nines: 247 + 584 = 834. Correct or wrong? (a) correct (b) wrong
16. 16.Check with nines: 617 + 617 = 1234. Correct or wrong? (a) wrong (b) correct
17. 17.33 × 50 =
18. 18.₹6.60 + ₹12.45 =
19. 19.174 − 79 =
20. 20.3 + 9 + 3 + 7 =
21. 21.76 + 65 + 34 + 37 =
22. 22.90 ÷ 5 =
23. 23.1% of 120 =
24. 24.135 − 87 =
25. 25.81 − 77 =
26. 26.36 × 15 =
27. 27.21² =
28. 28.Check with nines: 60 × 92 = 5520. Correct or wrong? (a) wrong (b) correct
29. 29.378 − 76 =
30. 30.80 + 84 + 31 + 77 =
31. 31.₹92.20 − ₹10.10 =
32. 32.Best estimate of 31 × 81? (a) 2400 (b) 240 (c) 24000 (d) 4800
33. 33.Check with nines: 528 + 184 = 712. Correct or wrong? (a) correct (b) wrong
34. 34.60 × 5 =
35. 35.51 × 50 =
36. 36.1 + 4 + 3 + 7 =
37. 37.Check with nines: 964 + 305 = 1269. Correct or wrong? (a) correct (b) wrong
38. 38.199 − 56 =
39. 39.50 + 28 + 67 + 22 =
40. 40.61 × 4 =

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