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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 625 · 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. 1.15.03 ÷ 1000 =
  2. 2.19.52 ÷ 10 =
  3. 3.76.2 ÷ 1000 =
  4. 4.6.7 × 10 =
  5. 5.10.37 × 10 =
  6. 6.250.5 ÷ 1000 =
  7. 7.419.8 ÷ 100 =
  8. 8.315.4 ÷ 100 =
  9. 9.28.5 ÷ 100 =
  10. 10.6.25 ÷ 10 =
  11. 11.33.87 ÷ 10 =
  12. 12.56.1 × 1000 =
  13. 13.115.1 × 10 =
  14. 14.148.2 ÷ 10 =
  15. 15.16.51 × 100 =
  16. 16.44.1 × 1000 =
  17. 17.237.9 ÷ 1000 =
  18. 18.39.2 × 10 =
  19. 19.64.2 ÷ 1000 =
  20. 20.27.5 ÷ 10 =
  21. 21.22.62 × 1000 =
  22. 22.472.1 × 1000 =
  23. 23.398.3 ÷ 100 =
  24. 24.16.71 ÷ 10 =
  25. 25.41.5 ÷ 1000 =
  26. 26.38.54 ÷ 1000 =
  27. 27.40.91 × 1000 =
  28. 28.220.7 × 1000 =
  29. 29.11.06 ÷ 100 =
  30. 30.54.9 ÷ 1000 =
  31. 31.285.1 × 10 =
  32. 32.36.51 ÷ 1000 =
  33. 33.406.7 × 1000 =
  34. 34.45.27 × 10 =
  35. 35.235.7 ÷ 100 =
  36. 36.278.5 × 100 =
  37. 37.3.14 × 1000 =
  38. 38.309.9 ÷ 1000 =
  39. 39.172.8 ÷ 1000 =
  40. 40.290.6 ÷ 100 =

Answer key

  1. 0.01503
  2. 1.952
  3. 0.0762
  4. 67
  5. 103.7
  6. 0.2505
  7. 4.198
  8. 3.154
  9. 0.285
  10. 0.625
  11. 3.387
  12. 56100
  13. 1151
  14. 14.82
  15. 1651
  16. 44100
  17. 0.2379
  18. 392
  19. 0.0642
  20. 2.75
  21. 22620
  22. 472100
  23. 3.983
  24. 1.671
  25. 0.0415
  26. 0.03854
  27. 40910
  28. 220700
  29. 0.1106
  30. 0.0549
  31. 2851
  32. 0.03651
  33. 406700
  34. 452.7
  35. 2.357
  36. 27850
  37. 3140
  38. 0.3099
  39. 0.1728
  40. 2.906

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