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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 126 · 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. 1.477.3 × 1000 =
  2. 2.4.88 × 1000 =
  3. 3.198.7 × 10 =
  4. 4.29.32 × 1000 =
  5. 5.365.6 × 10 =
  6. 6.46.79 ÷ 1000 =
  7. 7.34.01 ÷ 100 =
  8. 8.42.51 × 100 =
  9. 9.141.6 ÷ 10 =
  10. 10.174.3 × 10 =
  11. 11.20.29 ÷ 10 =
  12. 12.13.82 × 100 =
  13. 13.330.3 ÷ 10 =
  14. 14.25.34 × 100 =
  15. 15.31.32 ÷ 10 =
  16. 16.209.7 ÷ 100 =
  17. 17.317.1 × 1000 =
  18. 18.291.8 ÷ 100 =
  19. 19.442.4 ÷ 100 =
  20. 20.147.5 × 10 =
  21. 21.20.78 ÷ 1000 =
  22. 22.192.8 ÷ 100 =
  23. 23.466.8 × 1000 =
  24. 24.343.6 ÷ 100 =
  25. 25.458.3 × 100 =
  26. 26.47.52 ÷ 1000 =
  27. 27.48.3 × 1000 =
  28. 28.404.1 ÷ 10 =
  29. 29.37.15 ÷ 1000 =
  30. 30.388.6 × 10 =
  31. 31.495.3 × 1000 =
  32. 32.37.47 ÷ 10 =
  33. 33.31.17 × 100 =
  34. 34.0.21 ÷ 100 =
  35. 35.174.1 × 1000 =
  36. 36.298.6 × 100 =
  37. 37.41.81 × 1000 =
  38. 38.387.5 × 100 =
  39. 39.403.3 × 100 =
  40. 40.244.6 ÷ 100 =

Answer key

  1. 477300
  2. 4880
  3. 1987
  4. 29320
  5. 3656
  6. 0.04679
  7. 0.3401
  8. 4251
  9. 14.16
  10. 1743
  11. 2.029
  12. 1382
  13. 33.03
  14. 2534
  15. 3.132
  16. 2.097
  17. 317100
  18. 2.918
  19. 4.424
  20. 1475
  21. 0.02078
  22. 1.928
  23. 466800
  24. 3.436
  25. 45830
  26. 0.04752
  27. 48300
  28. 40.41
  29. 0.03715
  30. 3886
  31. 495300
  32. 3.747
  33. 3117
  34. 0.0021
  35. 174100
  36. 29860
  37. 41810
  38. 38750
  39. 40330
  40. 2.446

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