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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 375 · 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. 1.203.4 ÷ 1000 =
  2. 2.247.5 × 1000 =
  3. 3.297.7 ÷ 1000 =
  4. 4.19.09 ÷ 10 =
  5. 5.224.8 × 1000 =
  6. 6.31.36 × 1000 =
  7. 7.27.42 × 100 =
  8. 8.321.3 ÷ 10 =
  9. 9.324.1 ÷ 1000 =
  10. 10.47.01 × 1000 =
  11. 11.7.6 × 10 =
  12. 12.31.73 ÷ 1000 =
  13. 13.39.61 × 1000 =
  14. 14.296.1 × 10 =
  15. 15.205.2 × 10 =
  16. 16.418.7 ÷ 1000 =
  17. 17.12.66 × 1000 =
  18. 18.99.9 × 10 =
  19. 19.459.4 ÷ 100 =
  20. 20.259.9 ÷ 10 =
  21. 21.23.49 × 10 =
  22. 22.371.7 × 10 =
  23. 23.4.37 × 1000 =
  24. 24.33.1 × 10 =
  25. 25.470.7 ÷ 10 =
  26. 26.48.6 ÷ 1000 =
  27. 27.465.7 × 100 =
  28. 28.130.9 × 100 =
  29. 29.39.72 × 10 =
  30. 30.6.25 × 100 =
  31. 31.416.3 ÷ 1000 =
  32. 32.220.8 × 1000 =
  33. 33.15.01 ÷ 100 =
  34. 34.1.49 ÷ 100 =
  35. 35.3.92 ÷ 100 =
  36. 36.21.09 × 10 =
  37. 37.308.5 ÷ 10 =
  38. 38.132.6 × 10 =
  39. 39.97.2 × 1000 =
  40. 40.476.1 × 10 =

Answer key

  1. 0.2034
  2. 247500
  3. 0.2977
  4. 1.909
  5. 224800
  6. 31360
  7. 2742
  8. 32.13
  9. 0.3241
  10. 47010
  11. 76
  12. 0.03173
  13. 39610
  14. 2961
  15. 2052
  16. 0.4187
  17. 12660
  18. 999
  19. 4.594
  20. 25.99
  21. 234.9
  22. 3717
  23. 4370
  24. 331
  25. 47.07
  26. 0.0486
  27. 46570
  28. 13090
  29. 397.2
  30. 625
  31. 0.4163
  32. 220800
  33. 0.1501
  34. 0.0149
  35. 0.0392
  36. 210.9
  37. 30.85
  38. 1326
  39. 97200
  40. 4761

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