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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 476 · 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. 1.367.5 × 10 =
  2. 2.372.1 ÷ 1000 =
  3. 3.10.89 ÷ 1000 =
  4. 4.148.4 × 10 =
  5. 5.13.61 × 10 =
  6. 6.121.7 × 1000 =
  7. 7.26.47 ÷ 1000 =
  8. 8.146.7 ÷ 1000 =
  9. 9.18.6 × 10 =
  10. 10.477.1 × 1000 =
  11. 11.46.87 × 1000 =
  12. 12.14.11 × 1000 =
  13. 13.312.7 ÷ 10 =
  14. 14.44.33 ÷ 100 =
  15. 15.267.1 × 10 =
  16. 16.39.48 ÷ 10 =
  17. 17.404.9 × 100 =
  18. 18.448.6 × 100 =
  19. 19.23.52 ÷ 1000 =
  20. 20.26.99 × 100 =
  21. 21.1.95 ÷ 100 =
  22. 22.16.85 ÷ 100 =
  23. 23.473.6 × 10 =
  24. 24.34.1 × 100 =
  25. 25.28.8 × 100 =
  26. 26.287.5 ÷ 10 =
  27. 27.11.2 × 1000 =
  28. 28.8.19 × 10 =
  29. 29.17.2 × 10 =
  30. 30.11.21 ÷ 100 =
  31. 31.373.2 × 100 =
  32. 32.85.2 ÷ 10 =
  33. 33.15.74 × 100 =
  34. 34.5.14 ÷ 1000 =
  35. 35.67.3 × 1000 =
  36. 36.408.7 × 1000 =
  37. 37.47.73 × 100 =
  38. 38.101.8 ÷ 10 =
  39. 39.48.88 ÷ 1000 =
  40. 40.38.11 ÷ 100 =

Answer key

  1. 3675
  2. 0.3721
  3. 0.01089
  4. 1484
  5. 136.1
  6. 121700
  7. 0.02647
  8. 0.1467
  9. 186
  10. 477100
  11. 46870
  12. 14110
  13. 31.27
  14. 0.4433
  15. 2671
  16. 3.948
  17. 40490
  18. 44860
  19. 0.02352
  20. 2699
  21. 0.0195
  22. 0.1685
  23. 4736
  24. 3410
  25. 2880
  26. 28.75
  27. 11200
  28. 81.9
  29. 172
  30. 0.1121
  31. 37320
  32. 8.52
  33. 1574
  34. 0.00514
  35. 67300
  36. 408700
  37. 4773
  38. 10.18
  39. 0.04888
  40. 0.3811

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