Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 5 · 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.₹74.35 + ₹31.10 =
2. 2.29² =
3. 3.8 + 2 + 2 + 3 + 9 =
4. 4.323 − 56 =
5. 5.32 + 27 =
6. 6.62 × 15 =
7. 7.24 × 4 =
8. 8.475 ÷ 5 =
9. 9.55 × 50 =
10. 10.Check with nines: 896 + 619 = 1523. Correct or wrong? (a) correct (b) wrong
11. 11.25% of 150 =
12. 12.5 + 1 + 1 + 9 + 2 =
13. 13.Check with nines: 786 + 260 = 1041. Correct or wrong? (a) correct (b) wrong
14. 14.₹54.35 − ₹31.50 =
15. 15.17 × 19 =
16. 16.810 ÷ 5 =
17. 17.89² =
18. 18.39² =
19. 19.Best estimate of 801 × 4? (a) 320 (b) 6400 (c) 32000 (d) 3200
20. 20.91² =
21. 21.73 + 88 =
22. 22.69² =
23. 23.8 + 7 + 3 + 2 =
24. 24.Best estimate of 82 × 29? (a) 240 (b) 2400 (c) 24000 (d) 4800
25. 25.79² =
26. 26.740 ÷ 5 =
27. 27.20 × 15 =
28. 28.76 × 5 =
29. 29.305 ÷ 5 =
30. 30.53 × 50 =
31. 31.16 × 17 =
32. 32.Best estimate of 901 × 8? (a) 720 (b) 72000 (c) 7200 (d) 14400
33. 33.₹40.40 + ₹39.60 =
34. 34.Check with nines: 863 + 222 = 1080. Correct or wrong? (a) wrong (b) correct
35. 35.3 + 7 + 5 + 3 =
36. 36.₹50.60 − ₹37.70 =
37. 37.₹81.80 − ₹48.20 =
38. 38.Check with nines: 809 + 988 = 1800. Correct or wrong? (a) correct (b) wrong
39. 39.47 + 17 + 58 + 14 =
40. 40.Check with nines: 663 + 955 = 1615. Correct or wrong? (a) wrong (b) correct

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