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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 269 · 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. 1.477.3 × 1000 =
  2. 2.391.2 ÷ 1000 =
  3. 3.360.3 × 100 =
  4. 4.226.1 × 1000 =
  5. 5.461.2 × 1000 =
  6. 6.317.7 ÷ 10 =
  7. 7.486.1 × 10 =
  8. 8.69.3 × 10 =
  9. 9.42.59 ÷ 10 =
  10. 10.48.98 ÷ 1000 =
  11. 11.33.01 ÷ 100 =
  12. 12.10.21 × 10 =
  13. 13.421.6 ÷ 100 =
  14. 14.13.46 × 1000 =
  15. 15.41.14 × 100 =
  16. 16.85.7 × 10 =
  17. 17.130.9 × 100 =
  18. 18.325.2 ÷ 1000 =
  19. 19.30.98 × 1000 =
  20. 20.289.2 ÷ 10 =
  21. 21.14.85 × 10 =
  22. 22.464.7 × 10 =
  23. 23.17.31 ÷ 10 =
  24. 24.1.93 ÷ 100 =
  25. 25.44.01 × 100 =
  26. 26.8.07 × 1000 =
  27. 27.35.02 × 1000 =
  28. 28.119.1 × 100 =
  29. 29.447.5 ÷ 100 =
  30. 30.91.1 ÷ 10 =
  31. 31.337.1 × 1000 =
  32. 32.119.1 ÷ 1000 =
  33. 33.12.23 × 100 =
  34. 34.42.94 ÷ 1000 =
  35. 35.33.82 × 100 =
  36. 36.36.64 × 100 =
  37. 37.71.8 ÷ 10 =
  38. 38.63.8 × 1000 =
  39. 39.43.81 ÷ 100 =
  40. 40.61.4 × 100 =

Answer key

  1. 477300
  2. 0.3912
  3. 36030
  4. 226100
  5. 461200
  6. 31.77
  7. 4861
  8. 693
  9. 4.259
  10. 0.04898
  11. 0.3301
  12. 102.1
  13. 4.216
  14. 13460
  15. 4114
  16. 857
  17. 13090
  18. 0.3252
  19. 30980
  20. 28.92
  21. 148.5
  22. 4647
  23. 1.731
  24. 0.0193
  25. 4401
  26. 8070
  27. 35020
  28. 11910
  29. 4.475
  30. 9.11
  31. 337100
  32. 0.1191
  33. 1223
  34. 0.04294
  35. 3382
  36. 3664
  37. 7.18
  38. 63800
  39. 0.4381
  40. 6140

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