Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 752 · 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. 1.33 × 15 =
2. 2.₹88.10 + ₹45.80 =
3. 3.Best estimate of 82 × 28? (a) 24000 (b) 240 (c) 2400 (d) 4800
4. 4.54 + 83 + 64 + 51 =
5. 5.Check with nines: 66 × 81 = 5345. Correct or wrong? (a) correct (b) wrong
6. 6.Check with nines: 75 × 81 = 6075. Correct or wrong? (a) correct (b) wrong
7. 7.132 × 4 =
8. 8.Best estimate of 61 × 51? (a) 6000 (b) 3000 (c) 300 (d) 30000
9. 9.49² =
10. 10.77 + 65 + 21 + 29 =
11. 11.86 × 4 =
12. 12.142 + 27 =
13. 13.₹34.70 + ₹6.70 =
14. 14.550 ÷ 5 =
15. 15.204 − 59 =
16. 16.22 + 51 + 38 + 21 =
17. 17.4 + 5 + 7 + 4 + 5 =
18. 18.124 + 18 =
19. 19.281 − 87 =
20. 20.25% of 210 =
21. 21.30 + 59 =
22. 22.54 × 15 =
23. 23.72 + 21 + 29 + 79 =
24. 24.₹35.10 + ₹21.90 =
25. 25.21² =
26. 26.79² =
27. 27.62 × 8 =
28. 28.35 × 15 =
29. 29.Check with nines: 31 × 42 = 1302. Correct or wrong? (a) correct (b) wrong
30. 30.51² =
31. 31.208 + 69 =
32. 32.261 − 79 =
33. 33.65 × 4 =
34. 34.Check with nines: 666 + 747 = 1410. Correct or wrong? (a) correct (b) wrong
35. 35.29 + 84 + 50 + 79 =
36. 36.10% of 250 =
37. 37.₹38.35 − ₹4.40 =
38. 38.61² =
39. 39.42 × 8 =
40. 40.498 + 89 =

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