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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 769 · 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. 1.253.1 ÷ 10 =
  2. 2.31.36 × 1000 =
  3. 3.8.89 × 10 =
  4. 4.0.92 × 10 =
  5. 5.369.5 × 100 =
  6. 6.318.5 ÷ 10 =
  7. 7.37.57 × 100 =
  8. 8.347.9 × 1000 =
  9. 9.387.6 × 10 =
  10. 10.15.66 ÷ 1000 =
  11. 11.33.83 ÷ 1000 =
  12. 12.37.89 ÷ 1000 =
  13. 13.30.28 ÷ 10 =
  14. 14.496.7 ÷ 100 =
  15. 15.8.77 × 10 =
  16. 16.48.71 × 1000 =
  17. 17.34.47 ÷ 100 =
  18. 18.95.7 ÷ 10 =
  19. 19.343.3 × 100 =
  20. 20.408.1 × 1000 =
  21. 21.14.82 ÷ 1000 =
  22. 22.2.64 ÷ 10 =
  23. 23.5.02 × 1000 =
  24. 24.14.53 × 10 =
  25. 25.20.5 × 1000 =
  26. 26.5.69 × 10 =
  27. 27.360.9 × 100 =
  28. 28.289.1 × 10 =
  29. 29.41.91 ÷ 10 =
  30. 30.340.1 × 10 =
  31. 31.306.6 ÷ 1000 =
  32. 32.38.79 × 10 =
  33. 33.473.6 × 10 =
  34. 34.307.8 ÷ 10 =
  35. 35.21.29 ÷ 10 =
  36. 36.26.91 × 1000 =
  37. 37.240.5 × 1000 =
  38. 38.294.3 × 10 =
  39. 39.6.18 × 1000 =
  40. 40.212.2 × 1000 =

Answer key

  1. 25.31
  2. 31360
  3. 88.9
  4. 9.2
  5. 36950
  6. 31.85
  7. 3757
  8. 347900
  9. 3876
  10. 0.01566
  11. 0.03383
  12. 0.03789
  13. 3.028
  14. 4.967
  15. 87.7
  16. 48710
  17. 0.3447
  18. 9.57
  19. 34330
  20. 408100
  21. 0.01482
  22. 0.264
  23. 5020
  24. 145.3
  25. 20500
  26. 56.9
  27. 36090
  28. 2891
  29. 4.191
  30. 3401
  31. 0.3066
  32. 387.9
  33. 4736
  34. 30.78
  35. 2.129
  36. 26910
  37. 240500
  38. 2943
  39. 6180
  40. 212200

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