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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 196 · 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. 1.45.75 ÷ 1000 =
  2. 2.119.4 ÷ 10 =
  3. 3.350.3 × 1000 =
  4. 4.237.3 ÷ 100 =
  5. 5.85.9 × 1000 =
  6. 6.14.13 ÷ 10 =
  7. 7.20.81 × 10 =
  8. 8.204.1 × 10 =
  9. 9.35.4 ÷ 1000 =
  10. 10.6.86 × 1000 =
  11. 11.44.19 × 10 =
  12. 12.28.65 × 10 =
  13. 13.48.07 × 1000 =
  14. 14.7.56 × 100 =
  15. 15.33.3 × 100 =
  16. 16.384.1 ÷ 100 =
  17. 17.316.8 × 1000 =
  18. 18.28.2 × 10 =
  19. 19.24.38 ÷ 10 =
  20. 20.24.05 × 100 =
  21. 21.29.54 × 100 =
  22. 22.192.1 ÷ 100 =
  23. 23.36.08 × 100 =
  24. 24.48.84 × 100 =
  25. 25.23.55 × 1000 =
  26. 26.326.5 × 1000 =
  27. 27.254.2 × 10 =
  28. 28.7.86 ÷ 1000 =
  29. 29.34.38 × 1000 =
  30. 30.150.8 ÷ 100 =
  31. 31.46.39 × 100 =
  32. 32.363.5 × 1000 =
  33. 33.10.04 ÷ 100 =
  34. 34.38.24 ÷ 10 =
  35. 35.8.65 ÷ 100 =
  36. 36.20.06 × 10 =
  37. 37.483.6 × 100 =
  38. 38.40.89 × 10 =
  39. 39.0.41 ÷ 10 =
  40. 40.32.3 ÷ 1000 =

Answer key

  1. 0.04575
  2. 11.94
  3. 350300
  4. 2.373
  5. 85900
  6. 1.413
  7. 208.1
  8. 2041
  9. 0.0354
  10. 6860
  11. 441.9
  12. 286.5
  13. 48070
  14. 756
  15. 3330
  16. 3.841
  17. 316800
  18. 282
  19. 2.438
  20. 2405
  21. 2954
  22. 1.921
  23. 3608
  24. 4884
  25. 23550
  26. 326500
  27. 2542
  28. 0.00786
  29. 34380
  30. 1.508
  31. 4639
  32. 363500
  33. 0.1004
  34. 3.824
  35. 0.0865
  36. 200.6
  37. 48360
  38. 408.9
  39. 0.041
  40. 0.0323

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