Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 882 · 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 + 2 + 4 + 4 =
2. 2.₹79.35 + ₹23.55 =
3. 3.85 + 49 + 71 + 63 =
4. 4.130 + 38 =
5. 5.Best estimate of 19 × 79? (a) 1600 (b) 160 (c) 3200 (d) 16000
6. 6.51 × 50 =
7. 7.5% of 870 =
8. 8.62 × 15 =
9. 9.Check with nines: 70 × 85 = 5951. Correct or wrong? (a) wrong (b) correct
10. 10.29 × 5 =
11. 11.29 + 81 + 55 + 30 =
12. 12.41² =
13. 13.416 + 18 =
14. 14.57 + 39 =
15. 15.Best estimate of 897 × 5? (a) 4500 (b) 450 (c) 45000 (d) 9000
16. 16.₹66.15 + ₹47.95 =
17. 17.434 + 87 =
18. 18.35 × 15 =
19. 19.Best estimate of 59 × 62? (a) 36000 (b) 360 (c) 3600 (d) 7200
20. 20.64 + 58 =
21. 21.₹79.65 + ₹35.60 =
22. 22.95 × 5 =
23. 23.53 × 5 =
24. 24.31² =
25. 25.16 × 15 =
26. 26.71² =
27. 27.₹96.85 − ₹21.35 =
28. 28.1075 ÷ 25 =
29. 29.Check with nines: 823 + 721 = 1545. Correct or wrong? (a) correct (b) wrong
30. 30.₹82.05 − ₹31.20 =
31. 31.₹73.55 − ₹28.15 =
32. 32.343 − 78 =
33. 33.₹8.50 + ₹31.90 =
34. 34.384 − 57 =
35. 35.₹50.05 + ₹39.85 =
36. 36.Check with nines: 949 + 232 = 1181. Correct or wrong? (a) wrong (b) correct
37. 37.Best estimate of 601 × 6? (a) 7200 (b) 3600 (c) 36000 (d) 360
38. 38.18 × 15 =
39. 39.61² =
40. 40.79 + 14 + 38 + 81 =

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