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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 801 · 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. 1.29.25 ÷ 100 =
  2. 2.357.8 × 1000 =
  3. 3.5.36 × 1000 =
  4. 4.2.22 ÷ 10 =
  5. 5.46.8 ÷ 100 =
  6. 6.43.07 × 1000 =
  7. 7.9.96 ÷ 1000 =
  8. 8.222.5 ÷ 1000 =
  9. 9.12.64 ÷ 100 =
  10. 10.24.69 × 10 =
  11. 11.97.1 ÷ 1000 =
  12. 12.422.4 ÷ 1000 =
  13. 13.3.23 ÷ 10 =
  14. 14.471.8 ÷ 100 =
  15. 15.68.6 ÷ 10 =
  16. 16.372.9 × 10 =
  17. 17.358.9 × 100 =
  18. 18.27.96 × 10 =
  19. 19.438.7 ÷ 1000 =
  20. 20.46.11 ÷ 10 =
  21. 21.290.1 × 10 =
  22. 22.260.6 × 1000 =
  23. 23.392.7 × 1000 =
  24. 24.29.66 × 10 =
  25. 25.294.6 × 10 =
  26. 26.470.8 × 10 =
  27. 27.21.37 × 100 =
  28. 28.357.1 ÷ 1000 =
  29. 29.6.28 ÷ 10 =
  30. 30.6.61 × 1000 =
  31. 31.278.2 × 10 =
  32. 32.35.2 ÷ 10 =
  33. 33.31.7 × 10 =
  34. 34.179.4 × 1000 =
  35. 35.265.9 × 1000 =
  36. 36.292.8 × 1000 =
  37. 37.19.89 ÷ 10 =
  38. 38.22.05 ÷ 1000 =
  39. 39.386.4 × 10 =
  40. 40.278.5 × 100 =

Answer key

  1. 0.2925
  2. 357800
  3. 5360
  4. 0.222
  5. 0.468
  6. 43070
  7. 0.00996
  8. 0.2225
  9. 0.1264
  10. 246.9
  11. 0.0971
  12. 0.4224
  13. 0.323
  14. 4.718
  15. 6.86
  16. 3729
  17. 35890
  18. 279.6
  19. 0.4387
  20. 4.611
  21. 2901
  22. 260600
  23. 392700
  24. 296.6
  25. 2946
  26. 4708
  27. 2137
  28. 0.3571
  29. 0.628
  30. 6610
  31. 2782
  32. 3.52
  33. 317
  34. 179400
  35. 265900
  36. 292800
  37. 1.989
  38. 0.02205
  39. 3864
  40. 27850

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