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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 26 · 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. 1.129.6 ÷ 100 =
  2. 2.10.2 ÷ 10 =
  3. 3.35.01 × 100 =
  4. 4.14.12 × 1000 =
  5. 5.36.8 ÷ 100 =
  6. 6.94.1 × 10 =
  7. 7.13.7 × 100 =
  8. 8.34.87 ÷ 100 =
  9. 9.229.6 × 100 =
  10. 10.1.92 × 1000 =
  11. 11.33.1 × 10 =
  12. 12.214.2 ÷ 100 =
  13. 13.378.1 ÷ 100 =
  14. 14.208.4 ÷ 10 =
  15. 15.4.31 × 1000 =
  16. 16.11.72 ÷ 100 =
  17. 17.0.45 ÷ 100 =
  18. 18.149.6 ÷ 1000 =
  19. 19.309.8 ÷ 100 =
  20. 20.16.82 × 100 =
  21. 21.58.7 × 1000 =
  22. 22.470.6 × 100 =
  23. 23.61.3 × 10 =
  24. 24.367.4 × 100 =
  25. 25.383.6 × 1000 =
  26. 26.28.43 × 1000 =
  27. 27.17.01 ÷ 10 =
  28. 28.324.3 ÷ 100 =
  29. 29.19.81 × 100 =
  30. 30.181.2 × 1000 =
  31. 31.462.5 × 100 =
  32. 32.25.64 ÷ 1000 =
  33. 33.38.61 × 10 =
  34. 34.32.24 × 100 =
  35. 35.434.1 ÷ 100 =
  36. 36.209.3 ÷ 100 =
  37. 37.23.16 ÷ 10 =
  38. 38.416.7 ÷ 100 =
  39. 39.5.28 ÷ 1000 =
  40. 40.418.7 × 100 =

Answer key

  1. 1.296
  2. 1.02
  3. 3501
  4. 14120
  5. 0.368
  6. 941
  7. 1370
  8. 0.3487
  9. 22960
  10. 1920
  11. 331
  12. 2.142
  13. 3.781
  14. 20.84
  15. 4310
  16. 0.1172
  17. 0.0045
  18. 0.1496
  19. 3.098
  20. 1682
  21. 58700
  22. 47060
  23. 613
  24. 36740
  25. 383600
  26. 28430
  27. 1.701
  28. 3.243
  29. 1981
  30. 181200
  31. 46250
  32. 0.02564
  33. 386.1
  34. 3224
  35. 4.341
  36. 2.093
  37. 2.316
  38. 4.167
  39. 0.00528
  40. 41870

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