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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 953 · 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. 1.49.66 ÷ 100 =
  2. 2.46.28 ÷ 1000 =
  3. 3.453.5 ÷ 100 =
  4. 4.46.63 ÷ 100 =
  5. 5.197.9 × 10 =
  6. 6.19.62 × 100 =
  7. 7.49.67 × 100 =
  8. 8.412.1 ÷ 100 =
  9. 9.11.17 ÷ 10 =
  10. 10.35.79 ÷ 10 =
  11. 11.402.3 × 100 =
  12. 12.44.39 ÷ 10 =
  13. 13.233.3 × 100 =
  14. 14.32.51 × 1000 =
  15. 15.18.49 × 1000 =
  16. 16.205.6 ÷ 1000 =
  17. 17.487.7 × 100 =
  18. 18.243.1 × 10 =
  19. 19.429.7 × 10 =
  20. 20.341.7 × 10 =
  21. 21.37.53 ÷ 10 =
  22. 22.194.9 ÷ 100 =
  23. 23.26.51 × 100 =
  24. 24.350.4 × 10 =
  25. 25.12.86 × 10 =
  26. 26.302.6 × 10 =
  27. 27.382.2 ÷ 1000 =
  28. 28.43.43 ÷ 10 =
  29. 29.31.14 ÷ 100 =
  30. 30.36.8 ÷ 1000 =
  31. 31.1.53 ÷ 1000 =
  32. 32.16.53 × 10 =
  33. 33.16.75 ÷ 10 =
  34. 34.38.13 ÷ 100 =
  35. 35.32.42 ÷ 100 =
  36. 36.45.57 × 1000 =
  37. 37.121.5 ÷ 1000 =
  38. 38.49.89 ÷ 10 =
  39. 39.477.1 ÷ 1000 =
  40. 40.38.58 × 10 =

Answer key

  1. 0.4966
  2. 0.04628
  3. 4.535
  4. 0.4663
  5. 1979
  6. 1962
  7. 4967
  8. 4.121
  9. 1.117
  10. 3.579
  11. 40230
  12. 4.439
  13. 23330
  14. 32510
  15. 18490
  16. 0.2056
  17. 48770
  18. 2431
  19. 4297
  20. 3417
  21. 3.753
  22. 1.949
  23. 2651
  24. 3504
  25. 128.6
  26. 3026
  27. 0.3822
  28. 4.343
  29. 0.3114
  30. 0.0368
  31. 0.00153
  32. 165.3
  33. 1.675
  34. 0.3813
  35. 0.3242
  36. 45570
  37. 0.1215
  38. 4.989
  39. 0.4771
  40. 385.8

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