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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 132 · 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. 1.37.55 × 1000 =
  2. 2.378.7 × 100 =
  3. 3.2.81 ÷ 1000 =
  4. 4.23.91 × 1000 =
  5. 5.194.5 ÷ 100 =
  6. 6.30.54 ÷ 1000 =
  7. 7.481.3 × 10 =
  8. 8.46.92 × 1000 =
  9. 9.22.06 ÷ 1000 =
  10. 10.1.79 ÷ 1000 =
  11. 11.35.13 ÷ 100 =
  12. 12.395.9 ÷ 10 =
  13. 13.38.04 × 1000 =
  14. 14.40.37 ÷ 1000 =
  15. 15.38.1 ÷ 10 =
  16. 16.488.6 ÷ 100 =
  17. 17.380.2 × 10 =
  18. 18.46.07 ÷ 100 =
  19. 19.4.04 × 1000 =
  20. 20.9.35 × 100 =
  21. 21.36.86 × 100 =
  22. 22.8.1 ÷ 1000 =
  23. 23.410.3 × 10 =
  24. 24.11.18 × 1000 =
  25. 25.389.3 ÷ 100 =
  26. 26.9.56 × 10 =
  27. 27.49.42 ÷ 1000 =
  28. 28.23.31 × 10 =
  29. 29.3.93 × 100 =
  30. 30.132.4 × 10 =
  31. 31.3.14 ÷ 100 =
  32. 32.11.11 × 1000 =
  33. 33.233.2 × 10 =
  34. 34.437.7 × 100 =
  35. 35.331.1 × 1000 =
  36. 36.99.4 ÷ 10 =
  37. 37.389.3 ÷ 10 =
  38. 38.43.97 × 10 =
  39. 39.354.5 ÷ 10 =
  40. 40.220.1 × 100 =

Answer key

  1. 37550
  2. 37870
  3. 0.00281
  4. 23910
  5. 1.945
  6. 0.03054
  7. 4813
  8. 46920
  9. 0.02206
  10. 0.00179
  11. 0.3513
  12. 39.59
  13. 38040
  14. 0.04037
  15. 3.81
  16. 4.886
  17. 3802
  18. 0.4607
  19. 4040
  20. 935
  21. 3686
  22. 0.0081
  23. 4103
  24. 11180
  25. 3.893
  26. 95.6
  27. 0.04942
  28. 233.1
  29. 393
  30. 1324
  31. 0.0314
  32. 11110
  33. 2332
  34. 43770
  35. 331100
  36. 9.94
  37. 38.93
  38. 439.7
  39. 35.45
  40. 22010

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