← Decimal point jumps lesson New set →

Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 868 · 40 questions
TalentJR

The fast method (Jump the point): Count the zeros: 10 → 1 jump, 100 → 2 jumps, 1000 → 3 jumps. × moves the point right; ÷ moves it left. Run out of digits? Fill the gaps with 0s. Drop 0s at the end of a decimal: 3.40 is 3.4.

NameDateTime takenScore ___ / 40
  1. 1.418.5 × 10 =
  2. 2.32.11 ÷ 10 =
  3. 3.33.55 ÷ 1000 =
  4. 4.47.26 × 10 =
  5. 5.2.89 ÷ 10 =
  6. 6.25.64 ÷ 100 =
  7. 7.226.2 × 100 =
  8. 8.181.2 ÷ 100 =
  9. 9.30.14 × 10 =
  10. 10.78.7 × 1000 =
  11. 11.29.01 × 10 =
  12. 12.224.9 × 10 =
  13. 13.48.91 × 1000 =
  14. 14.432.3 ÷ 10 =
  15. 15.2.85 ÷ 1000 =
  16. 16.219.9 ÷ 10 =
  17. 17.2.13 × 100 =
  18. 18.41.27 × 10 =
  19. 19.111.5 × 1000 =
  20. 20.26.49 ÷ 10 =
  21. 21.223.8 ÷ 100 =
  22. 22.79.3 × 100 =
  23. 23.34.7 × 10 =
  24. 24.204.1 ÷ 10 =
  25. 25.28.71 × 1000 =
  26. 26.209.5 ÷ 100 =
  27. 27.93.4 ÷ 100 =
  28. 28.5.75 ÷ 100 =
  29. 29.150.1 × 10 =
  30. 30.8.62 × 1000 =
  31. 31.410.6 ÷ 1000 =
  32. 32.12.79 ÷ 1000 =
  33. 33.194.9 × 1000 =
  34. 34.101.1 × 10 =
  35. 35.11.39 ÷ 1000 =
  36. 36.3.87 ÷ 1000 =
  37. 37.6.91 ÷ 1000 =
  38. 38.7.68 × 10 =
  39. 39.37.46 ÷ 100 =
  40. 40.122.8 ÷ 10 =

Answer key

  1. 4185
  2. 3.211
  3. 0.03355
  4. 472.6
  5. 0.289
  6. 0.2564
  7. 22620
  8. 1.812
  9. 301.4
  10. 78700
  11. 290.1
  12. 2249
  13. 48910
  14. 43.23
  15. 0.00285
  16. 21.99
  17. 213
  18. 412.7
  19. 111500
  20. 2.649
  21. 2.238
  22. 7930
  23. 347
  24. 20.41
  25. 28710
  26. 2.095
  27. 0.934
  28. 0.0575
  29. 1501
  30. 8620
  31. 0.4106
  32. 0.01279
  33. 194900
  34. 1011
  35. 0.01139
  36. 0.00387
  37. 0.00691
  38. 76.8
  39. 0.3746
  40. 12.28

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