Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 598 · 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. 1.6 + 8 + 4 + 2 + 2 =
2. 2.20% of 30 =
3. 3.59² =
4. 4.590 − 98 =
5. 5.Check with nines: 39 × 66 = 2580. Correct or wrong? (a) wrong (b) correct
6. 6.950 ÷ 50 =
7. 7.238 − 29 =
8. 8.85 × 5 =
9. 9.Check with nines: 447 + 790 = 1241. Correct or wrong? (a) wrong (b) correct
10. 10.79 + 38 =
11. 11.185 − 36 =
12. 12.10% of 380 =
13. 13.Best estimate of 49 × 51? (a) 5000 (b) 2500 (c) 250 (d) 25000
14. 14.89² =
15. 15.366 + 89 =
16. 16.62 × 50 =
17. 17.Check with nines: 348 + 487 = 835. Correct or wrong? (a) correct (b) wrong
18. 18.394 − 59 =
19. 19.Best estimate of 41 × 32? (a) 2400 (b) 120 (c) 1200 (d) 12000
20. 20.370 − 78 =
21. 21.16 × 12 =
22. 22.₹97.10 − ₹4.60 =
23. 23.225 + 99 =
24. 24.51² =
25. 25.20 × 5 =
26. 26.Check with nines: 63 × 87 = 5481. Correct or wrong? (a) wrong (b) correct
27. 27.41² =
28. 28.Check with nines: 679 + 481 = 1158. Correct or wrong? (a) correct (b) wrong
29. 29.343 − 79 =
30. 30.472 + 87 =
31. 31.589 − 38 =
32. 32.₹32.10 + ₹15.60 =
33. 33.14 × 16 =
34. 34.9 + 9 + 1 + 3 + 9 =
35. 35.945 ÷ 5 =
36. 36.48 × 8 =
37. 37.314 + 38 =
38. 38.196 + 59 =
39. 39.1250 ÷ 50 =
40. 40.10% of 610 =

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