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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 116 · 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. 1.26.75 ÷ 10 =
  2. 2.92.3 × 1000 =
  3. 3.213.3 ÷ 10 =
  4. 4.45.31 ÷ 1000 =
  5. 5.471.5 ÷ 100 =
  6. 6.7.5 × 1000 =
  7. 7.14.39 × 10 =
  8. 8.17.63 × 1000 =
  9. 9.421.4 × 1000 =
  10. 10.48.1 × 10 =
  11. 11.264.1 × 100 =
  12. 12.13.13 × 10 =
  13. 13.259.1 × 100 =
  14. 14.85.4 ÷ 10 =
  15. 15.23.59 × 10 =
  16. 16.358.7 ÷ 10 =
  17. 17.98.6 ÷ 10 =
  18. 18.10.12 × 10 =
  19. 19.477.7 ÷ 1000 =
  20. 20.43.8 × 1000 =
  21. 21.33.32 × 10 =
  22. 22.249.1 ÷ 10 =
  23. 23.39.47 × 100 =
  24. 24.263.3 ÷ 1000 =
  25. 25.20.69 ÷ 100 =
  26. 26.357.7 × 1000 =
  27. 27.7.24 ÷ 10 =
  28. 28.7.01 × 100 =
  29. 29.28.37 × 100 =
  30. 30.18.01 ÷ 1000 =
  31. 31.1.12 × 100 =
  32. 32.44.31 ÷ 10 =
  33. 33.7.85 ÷ 1000 =
  34. 34.147.1 × 100 =
  35. 35.46.66 × 100 =
  36. 36.23.69 × 10 =
  37. 37.491.8 ÷ 10 =
  38. 38.196.4 × 1000 =
  39. 39.265.3 ÷ 10 =
  40. 40.21.04 × 10 =

Answer key

  1. 2.675
  2. 92300
  3. 21.33
  4. 0.04531
  5. 4.715
  6. 7500
  7. 143.9
  8. 17630
  9. 421400
  10. 481
  11. 26410
  12. 131.3
  13. 25910
  14. 8.54
  15. 235.9
  16. 35.87
  17. 9.86
  18. 101.2
  19. 0.4777
  20. 43800
  21. 333.2
  22. 24.91
  23. 3947
  24. 0.2633
  25. 0.2069
  26. 357700
  27. 0.724
  28. 701
  29. 2837
  30. 0.01801
  31. 112
  32. 4.431
  33. 0.00785
  34. 14710
  35. 4666
  36. 236.9
  37. 49.18
  38. 196400
  39. 26.53
  40. 210.4

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