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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 756 · 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. 1.415.9 ÷ 100 =
  2. 2.4.3 ÷ 1000 =
  3. 3.46.37 ÷ 1000 =
  4. 4.83.5 ÷ 10 =
  5. 5.194.3 ÷ 10 =
  6. 6.37.88 ÷ 100 =
  7. 7.37.99 × 1000 =
  8. 8.211.2 ÷ 100 =
  9. 9.20.34 × 100 =
  10. 10.469.4 ÷ 100 =
  11. 11.44.49 ÷ 10 =
  12. 12.76.9 × 10 =
  13. 13.71.7 ÷ 1000 =
  14. 14.40.24 ÷ 100 =
  15. 15.19.4 × 10 =
  16. 16.4.31 × 10 =
  17. 17.36.49 × 1000 =
  18. 18.26.81 × 100 =
  19. 19.49.7 × 100 =
  20. 20.460.1 × 1000 =
  21. 21.184.7 × 10 =
  22. 22.217.1 × 10 =
  23. 23.41.15 × 100 =
  24. 24.3.48 × 1000 =
  25. 25.134.8 × 100 =
  26. 26.9.31 ÷ 1000 =
  27. 27.310.3 × 1000 =
  28. 28.392.7 × 10 =
  29. 29.239.5 ÷ 10 =
  30. 30.9.56 × 10 =
  31. 31.41.34 ÷ 1000 =
  32. 32.216.4 × 100 =
  33. 33.12.59 ÷ 10 =
  34. 34.2.26 ÷ 10 =
  35. 35.219.5 × 100 =
  36. 36.46.55 × 100 =
  37. 37.413.7 × 1000 =
  38. 38.15.59 ÷ 100 =
  39. 39.224.4 × 10 =
  40. 40.285.1 ÷ 100 =

Answer key

  1. 4.159
  2. 0.0043
  3. 0.04637
  4. 8.35
  5. 19.43
  6. 0.3788
  7. 37990
  8. 2.112
  9. 2034
  10. 4.694
  11. 4.449
  12. 769
  13. 0.0717
  14. 0.4024
  15. 194
  16. 43.1
  17. 36490
  18. 2681
  19. 4970
  20. 460100
  21. 1847
  22. 2171
  23. 4115
  24. 3480
  25. 13480
  26. 0.00931
  27. 310300
  28. 3927
  29. 23.95
  30. 95.6
  31. 0.04134
  32. 21640
  33. 1.259
  34. 0.226
  35. 21950
  36. 4655
  37. 413700
  38. 0.1559
  39. 2244
  40. 2.851

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