Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 408 · 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.Check with nines: 93 × 75 = 6975. Correct or wrong? (a) wrong (b) correct
2. 2.59 × 15 =
3. 3.₹42.55 − ₹12.80 =
4. 4.1 + 2 + 8 + 3 =
5. 5.33 + 77 + 21 + 14 =
6. 6.Check with nines: 14 × 53 = 742. Correct or wrong? (a) wrong (b) correct
7. 7.17 × 50 =
8. 8.1 + 3 + 3 + 6 + 7 =
9. 9.Check with nines: 81 × 89 = 7208. Correct or wrong? (a) wrong (b) correct
10. 10.58 + 72 + 68 + 43 =
11. 11.Check with nines: 56 × 59 = 3301. Correct or wrong? (a) correct (b) wrong
12. 12.71² =
13. 13.51 + 41 + 46 + 71 =
14. 14.39 + 89 + 28 + 89 =
15. 15.11 × 16 =
16. 16.337 − 36 =
17. 17.66 + 29 + 19 + 80 =
18. 18.1 + 9 + 3 + 9 =
19. 19.59² =
20. 20.1425 ÷ 25 =
21. 21.₹17.70 + ₹26.85 =
22. 22.Best estimate of 399 × 3? (a) 120 (b) 2400 (c) 12000 (d) 1200
23. 23.294 − 86 =
24. 24.91 + 77 =
25. 25.₹85.80 + ₹22.30 =
26. 26.152 × 4 =
27. 27.15% of 180 =
28. 28.15 × 15 =
29. 29.₹42.35 − ₹37.35 =
30. 30.₹92.25 + ₹24.40 =
31. 31.158 + 49 =
32. 32.Check with nines: 14 × 90 = 1260. Correct or wrong? (a) wrong (b) correct
33. 33.13 × 16 =
34. 34.505 ÷ 5 =
35. 35.48 × 15 =
36. 36.18 × 18 =
37. 37.32 × 15 =
38. 38.81 + 68 + 77 + 63 =
39. 39.1% of 100 =
40. 40.25% of 480 =

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