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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 268 · 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. 1.124.1 ÷ 1000 =
  2. 2.12.91 ÷ 1000 =
  3. 3.466.3 ÷ 1000 =
  4. 4.44.14 × 10 =
  5. 5.213.9 ÷ 10 =
  6. 6.184.6 ÷ 1000 =
  7. 7.35.87 ÷ 100 =
  8. 8.182.1 × 1000 =
  9. 9.390.5 × 100 =
  10. 10.93.7 × 100 =
  11. 11.196.3 × 1000 =
  12. 12.105.5 × 1000 =
  13. 13.36.5 × 10 =
  14. 14.167.2 × 10 =
  15. 15.447.8 ÷ 10 =
  16. 16.112.4 ÷ 100 =
  17. 17.13.39 × 100 =
  18. 18.22.63 × 1000 =
  19. 19.35.19 × 1000 =
  20. 20.25.47 × 1000 =
  21. 21.462.3 × 1000 =
  22. 22.348.1 × 100 =
  23. 23.4.71 × 10 =
  24. 24.304.8 × 10 =
  25. 25.497.7 ÷ 1000 =
  26. 26.441.9 ÷ 100 =
  27. 27.18.03 ÷ 10 =
  28. 28.167.2 × 1000 =
  29. 29.433.1 ÷ 1000 =
  30. 30.356.4 × 10 =
  31. 31.16.75 × 10 =
  32. 32.127.9 ÷ 1000 =
  33. 33.35.11 ÷ 100 =
  34. 34.22.73 × 1000 =
  35. 35.56.8 × 100 =
  36. 36.474.1 × 1000 =
  37. 37.187.6 ÷ 100 =
  38. 38.83.3 × 10 =
  39. 39.217.5 ÷ 100 =
  40. 40.44.82 ÷ 10 =

Answer key

  1. 0.1241
  2. 0.01291
  3. 0.4663
  4. 441.4
  5. 21.39
  6. 0.1846
  7. 0.3587
  8. 182100
  9. 39050
  10. 9370
  11. 196300
  12. 105500
  13. 365
  14. 1672
  15. 44.78
  16. 1.124
  17. 1339
  18. 22630
  19. 35190
  20. 25470
  21. 462300
  22. 34810
  23. 47.1
  24. 3048
  25. 0.4977
  26. 4.419
  27. 1.803
  28. 167200
  29. 0.4331
  30. 3564
  31. 167.5
  32. 0.1279
  33. 0.3511
  34. 22730
  35. 5680
  36. 474100
  37. 1.876
  38. 833
  39. 2.175
  40. 4.482

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