Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 964 · 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. 1.392 + 59 =
2. 2.Check with nines: 36 × 18 = 655. Correct or wrong? (a) wrong (b) correct
3. 3.850 ÷ 50 =
4. 4.Check with nines: 13 × 46 = 598. Correct or wrong? (a) correct (b) wrong
5. 5.76 × 50 =
6. 6.Best estimate of 48 × 61? (a) 6000 (b) 300 (c) 30000 (d) 3000
7. 7.39² =
8. 8.₹8.55 + ₹28.35 =
9. 9.Best estimate of 71 × 88? (a) 630 (b) 6300 (c) 63000 (d) 12600
10. 10.300 ÷ 25 =
11. 11.475 + 47 =
12. 12.5% of 400 =
13. 13.1150 ÷ 50 =
14. 14.11 × 15 =
15. 15.975 ÷ 25 =
16. 16.Check with nines: 21 × 51 = 1071. Correct or wrong? (a) correct (b) wrong
17. 17.43 + 12 + 22 + 13 =
18. 18.51² =
19. 19.193 + 77 =
20. 20.2 + 2 + 8 + 8 =
21. 21.335 + 99 =
22. 22.Check with nines: 770 + 283 = 1053. Correct or wrong? (a) wrong (b) correct
23. 23.405 + 77 =
24. 24.12 × 14 =
25. 25.7 + 2 + 3 + 1 =
26. 26.81 + 65 + 75 + 15 =
27. 27.Best estimate of 602 × 4? (a) 24000 (b) 4800 (c) 240 (d) 2400
28. 28.28 + 33 + 88 + 76 =
29. 29.25 + 76 + 62 + 21 =
30. 30.49² =
31. 31.50% of 130 =
32. 32.149 × 4 =
33. 33.74 × 4 =
34. 34.36 × 15 =
35. 35.34 × 15 =
36. 36.Check with nines: 328 + 720 = 1048. Correct or wrong? (a) wrong (b) correct
37. 37.122 × 4 =
38. 38.218 − 38 =
39. 39.Check with nines: 908 + 195 = 1110. Correct or wrong? (a) correct (b) wrong
40. 40.₹15.50 − ₹3.65 =

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