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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 773 · 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. 1.293.6 × 1000 =
  2. 2.110.5 ÷ 100 =
  3. 3.441.3 × 10 =
  4. 4.91.1 × 1000 =
  5. 5.17.41 × 10 =
  6. 6.42.59 × 100 =
  7. 7.40.6 ÷ 1000 =
  8. 8.1.66 ÷ 10 =
  9. 9.47.05 × 1000 =
  10. 10.47.11 × 1000 =
  11. 11.6.05 ÷ 1000 =
  12. 12.30.82 ÷ 1000 =
  13. 13.14.5 ÷ 1000 =
  14. 14.334.5 × 1000 =
  15. 15.48.84 ÷ 100 =
  16. 16.403.9 ÷ 1000 =
  17. 17.395.1 ÷ 100 =
  18. 18.1.93 ÷ 1000 =
  19. 19.442.1 × 10 =
  20. 20.113.5 ÷ 100 =
  21. 21.41.66 × 1000 =
  22. 22.9.81 ÷ 10 =
  23. 23.52.6 × 10 =
  24. 24.29.31 × 100 =
  25. 25.358.8 ÷ 10 =
  26. 26.17.57 × 10 =
  27. 27.73.1 ÷ 10 =
  28. 28.38.02 ÷ 1000 =
  29. 29.24.61 ÷ 10 =
  30. 30.16.19 ÷ 10 =
  31. 31.13.95 × 1000 =
  32. 32.388.6 ÷ 1000 =
  33. 33.440.2 × 1000 =
  34. 34.24.16 × 100 =
  35. 35.199.2 ÷ 100 =
  36. 36.379.5 ÷ 100 =
  37. 37.227.9 × 10 =
  38. 38.6.89 ÷ 10 =
  39. 39.411.5 ÷ 100 =
  40. 40.4.91 × 10 =

Answer key

  1. 293600
  2. 1.105
  3. 4413
  4. 91100
  5. 174.1
  6. 4259
  7. 0.0406
  8. 0.166
  9. 47050
  10. 47110
  11. 0.00605
  12. 0.03082
  13. 0.0145
  14. 334500
  15. 0.4884
  16. 0.4039
  17. 3.951
  18. 0.00193
  19. 4421
  20. 1.135
  21. 41660
  22. 0.981
  23. 526
  24. 2931
  25. 35.88
  26. 175.7
  27. 7.31
  28. 0.03802
  29. 2.461
  30. 1.619
  31. 13950
  32. 0.3886
  33. 440200
  34. 2416
  35. 1.992
  36. 3.795
  37. 2279
  38. 0.689
  39. 4.115
  40. 49.1

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