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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 172 · 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. 1.54.3 ÷ 100 =
  2. 2.4.8 ÷ 1000 =
  3. 3.41.66 × 1000 =
  4. 4.21.41 ÷ 100 =
  5. 5.14.73 ÷ 100 =
  6. 6.49.25 × 1000 =
  7. 7.63.7 × 10 =
  8. 8.97.1 ÷ 1000 =
  9. 9.141.3 × 1000 =
  10. 10.17.86 × 10 =
  11. 11.213.8 × 10 =
  12. 12.38.05 × 1000 =
  13. 13.225.3 × 10 =
  14. 14.43.43 ÷ 10 =
  15. 15.438.9 × 10 =
  16. 16.16.93 × 1000 =
  17. 17.36.48 ÷ 100 =
  18. 18.31.82 × 1000 =
  19. 19.432.7 × 10 =
  20. 20.86.8 ÷ 100 =
  21. 21.7.61 × 100 =
  22. 22.329.5 × 1000 =
  23. 23.39.41 × 100 =
  24. 24.47.61 × 1000 =
  25. 25.33.4 × 1000 =
  26. 26.167.1 × 10 =
  27. 27.208.5 × 1000 =
  28. 28.48.07 ÷ 1000 =
  29. 29.14.51 × 100 =
  30. 30.48.5 × 1000 =
  31. 31.456.6 × 100 =
  32. 32.14.75 ÷ 10 =
  33. 33.439.4 × 100 =
  34. 34.35.1 × 100 =
  35. 35.479.2 ÷ 1000 =
  36. 36.23.61 × 1000 =
  37. 37.182.3 ÷ 10 =
  38. 38.41.83 × 10 =
  39. 39.42.49 ÷ 1000 =
  40. 40.323.3 × 1000 =

Answer key

  1. 0.543
  2. 0.0048
  3. 41660
  4. 0.2141
  5. 0.1473
  6. 49250
  7. 637
  8. 0.0971
  9. 141300
  10. 178.6
  11. 2138
  12. 38050
  13. 2253
  14. 4.343
  15. 4389
  16. 16930
  17. 0.3648
  18. 31820
  19. 4327
  20. 0.868
  21. 761
  22. 329500
  23. 3941
  24. 47610
  25. 33400
  26. 1671
  27. 208500
  28. 0.04807
  29. 1451
  30. 48500
  31. 45660
  32. 1.475
  33. 43940
  34. 3510
  35. 0.4792
  36. 23610
  37. 18.23
  38. 418.3
  39. 0.04249
  40. 323300

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