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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 41 · 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. 1.125.9 ÷ 10 =
  2. 2.34.32 × 100 =
  3. 3.9.57 ÷ 10 =
  4. 4.11.51 ÷ 10 =
  5. 5.7.95 ÷ 100 =
  6. 6.37.96 ÷ 1000 =
  7. 7.372.1 × 100 =
  8. 8.260.5 × 1000 =
  9. 9.481.3 × 10 =
  10. 10.414.8 × 1000 =
  11. 11.419.1 × 100 =
  12. 12.272.5 × 10 =
  13. 13.267.8 × 10 =
  14. 14.4.27 ÷ 10 =
  15. 15.39.22 ÷ 100 =
  16. 16.11.91 ÷ 1000 =
  17. 17.48.96 × 1000 =
  18. 18.11.49 × 100 =
  19. 19.286.2 ÷ 100 =
  20. 20.310.9 ÷ 10 =
  21. 21.431.1 ÷ 100 =
  22. 22.25.36 × 10 =
  23. 23.369.9 × 10 =
  24. 24.29.75 × 1000 =
  25. 25.413.1 ÷ 10 =
  26. 26.337.1 ÷ 10 =
  27. 27.162.3 ÷ 100 =
  28. 28.45.18 ÷ 10 =
  29. 29.325.1 ÷ 10 =
  30. 30.14.4 × 10 =
  31. 31.37.28 ÷ 10 =
  32. 32.27.84 ÷ 10 =
  33. 33.43.62 ÷ 1000 =
  34. 34.11.1 ÷ 100 =
  35. 35.53.2 ÷ 10 =
  36. 36.140.8 × 1000 =
  37. 37.46.61 × 10 =
  38. 38.37.91 × 1000 =
  39. 39.25.08 ÷ 10 =
  40. 40.35.2 ÷ 10 =

Answer key

  1. 12.59
  2. 3432
  3. 0.957
  4. 1.151
  5. 0.0795
  6. 0.03796
  7. 37210
  8. 260500
  9. 4813
  10. 414800
  11. 41910
  12. 2725
  13. 2678
  14. 0.427
  15. 0.3922
  16. 0.01191
  17. 48960
  18. 1149
  19. 2.862
  20. 31.09
  21. 4.311
  22. 253.6
  23. 3699
  24. 29750
  25. 41.31
  26. 33.71
  27. 1.623
  28. 4.518
  29. 32.51
  30. 144
  31. 3.728
  32. 2.784
  33. 0.04362
  34. 0.111
  35. 5.32
  36. 140800
  37. 466.1
  38. 37910
  39. 2.508
  40. 3.52

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