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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 657 · 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. 1.325.9 × 100 =
  2. 2.167.2 × 10 =
  3. 3.27.4 × 10 =
  4. 4.38.36 ÷ 1000 =
  5. 5.23.95 × 10 =
  6. 6.263.3 × 1000 =
  7. 7.37.81 × 1000 =
  8. 8.423.1 × 100 =
  9. 9.413.6 × 100 =
  10. 10.454.7 ÷ 10 =
  11. 11.16.06 ÷ 1000 =
  12. 12.144.1 ÷ 1000 =
  13. 13.348.1 × 10 =
  14. 14.27.92 × 1000 =
  15. 15.497.1 ÷ 100 =
  16. 16.408.8 × 10 =
  17. 17.2.52 × 10 =
  18. 18.98.3 ÷ 10 =
  19. 19.23.82 × 10 =
  20. 20.27.04 × 1000 =
  21. 21.118.1 × 100 =
  22. 22.217.1 ÷ 10 =
  23. 23.350.7 ÷ 10 =
  24. 24.40.4 ÷ 1000 =
  25. 25.320.8 × 1000 =
  26. 26.43.51 ÷ 10 =
  27. 27.51.9 × 100 =
  28. 28.69.7 × 100 =
  29. 29.342.2 × 100 =
  30. 30.103.4 × 10 =
  31. 31.59.1 × 1000 =
  32. 32.17.64 ÷ 1000 =
  33. 33.47.34 × 100 =
  34. 34.19.53 × 100 =
  35. 35.291.7 ÷ 1000 =
  36. 36.31.51 ÷ 100 =
  37. 37.29.28 × 100 =
  38. 38.18.81 ÷ 1000 =
  39. 39.284.5 × 100 =
  40. 40.410.2 ÷ 1000 =

Answer key

  1. 32590
  2. 1672
  3. 274
  4. 0.03836
  5. 239.5
  6. 263300
  7. 37810
  8. 42310
  9. 41360
  10. 45.47
  11. 0.01606
  12. 0.1441
  13. 3481
  14. 27920
  15. 4.971
  16. 4088
  17. 25.2
  18. 9.83
  19. 238.2
  20. 27040
  21. 11810
  22. 21.71
  23. 35.07
  24. 0.0404
  25. 320800
  26. 4.351
  27. 5190
  28. 6970
  29. 34220
  30. 1034
  31. 59100
  32. 0.01764
  33. 4734
  34. 1953
  35. 0.2917
  36. 0.3151
  37. 2928
  38. 0.01881
  39. 28450
  40. 0.4102

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