Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 513 · 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: 625 + 826 = 1450. Correct or wrong? (a) correct (b) wrong
2. 2.Check with nines: 82 × 66 = 5412. Correct or wrong? (a) correct (b) wrong
3. 3.9 + 3 + 5 + 7 =
4. 4.425 ÷ 25 =
5. 5.81² =
6. 6.Check with nines: 50 × 56 = 2800. Correct or wrong? (a) wrong (b) correct
7. 7.49 × 15 =
8. 8.68 + 36 + 23 + 85 =
9. 9.56 × 5 =
10. 10.Best estimate of 71 × 92? (a) 12600 (b) 6300 (c) 63000 (d) 630
11. 11.82 + 21 + 59 + 15 =
12. 12.17 × 11 =
13. 13.57 × 4 =
14. 14.850 ÷ 25 =
15. 15.950 ÷ 50 =
16. 16.₹37.20 − ₹31.40 =
17. 17.Best estimate of 58 × 19? (a) 12000 (b) 120 (c) 1200 (d) 2400
18. 18.525 − 36 =
19. 19.₹34.30 − ₹19.05 =
20. 20.₹29.40 − ₹23.15 =
21. 21.496 − 79 =
22. 22.255 ÷ 5 =
23. 23.12 × 17 =
24. 24.71² =
25. 25.49² =
26. 26.₹43.15 − ₹5.05 =
27. 27.241 − 17 =
28. 28.₹6.05 + ₹23.65 =
29. 29.Check with nines: 14 × 20 = 280. Correct or wrong? (a) wrong (b) correct
30. 30.576 − 79 =
31. 31.148 × 4 =
32. 32.54 × 4 =
33. 33.7 + 8 + 3 + 5 =
34. 34.Best estimate of 31 × 68? (a) 2100 (b) 4200 (c) 210 (d) 21000
35. 35.₹44.90 + ₹33.40 =
36. 36.14 × 19 =
37. 37.565 ÷ 5 =
38. 38.4 + 6 + 5 + 4 =
39. 39.52 × 5 =
40. 40.850 ÷ 25 =

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