Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 281 · 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. 1.7 × 15 =
2. 2.Check with nines: 99 × 70 = 6930. Correct or wrong? (a) correct (b) wrong
3. 3.71² =
4. 4.152 + 98 =
5. 5.16 × 19 =
6. 6.₹80.40 + ₹49.05 =
7. 7.7 + 6 + 3 + 3 =
8. 8.482 − 88 =
9. 9.Best estimate of 801 × 8? (a) 640 (b) 6400 (c) 64000 (d) 12800
10. 10.6 + 1 + 8 + 2 =
11. 11.₹74.10 + ₹38.95 =
12. 12.Best estimate of 197 × 4? (a) 1600 (b) 8000 (c) 80 (d) 800
13. 13.49 × 15 =
14. 14.80 + 58 + 52 + 85 =
15. 15.Best estimate of 18 × 61? (a) 120 (b) 2400 (c) 1200 (d) 12000
16. 16.₹85.80 + ₹41.10 =
17. 17.77 + 32 + 73 + 71 =
18. 18.Check with nines: 95 × 41 = 3895. Correct or wrong? (a) correct (b) wrong
19. 19.Check with nines: 82 × 18 = 1476. Correct or wrong? (a) wrong (b) correct
20. 20.500 ÷ 25 =
21. 21.69² =
22. 22.9 × 15 =
23. 23.41² =
24. 24.54 × 5 =
25. 25.63 × 8 =
26. 26.61² =
27. 27.25% of 640 =
28. 28.62 + 70 + 48 + 42 =
29. 29.₹63.40 + ₹37.10 =
30. 30.19 × 15 =
31. 31.492 + 78 =
32. 32.₹41.15 + ₹42.45 =
33. 33.1400 ÷ 50 =
34. 34.79² =
35. 35.₹70.40 + ₹45.70 =
36. 36.7 + 1 + 8 + 2 + 3 =
37. 37.3 + 2 + 4 + 7 =
38. 38.₹24.05 + ₹24.55 =
39. 39.Check with nines: 826 + 491 = 1319. Correct or wrong? (a) wrong (b) correct
40. 40.49 + 27 + 27 + 33 =

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