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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 263 · 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. 1.459.6 ÷ 100 =
  2. 2.371.1 × 10 =
  3. 3.32.61 ÷ 100 =
  4. 4.10.96 ÷ 10 =
  5. 5.360.6 × 1000 =
  6. 6.28.13 × 1000 =
  7. 7.429.4 × 1000 =
  8. 8.36.79 × 10 =
  9. 9.97.2 ÷ 10 =
  10. 10.44.68 ÷ 100 =
  11. 11.10.76 ÷ 10 =
  12. 12.0.54 ÷ 1000 =
  13. 13.158.8 ÷ 10 =
  14. 14.477.3 × 10 =
  15. 15.204.9 × 10 =
  16. 16.247.2 ÷ 1000 =
  17. 17.46.01 × 100 =
  18. 18.223.9 ÷ 10 =
  19. 19.65.8 × 10 =
  20. 20.348.6 ÷ 100 =
  21. 21.8.52 ÷ 10 =
  22. 22.171.1 ÷ 1000 =
  23. 23.12.42 × 100 =
  24. 24.10.2 ÷ 10 =
  25. 25.277.5 × 10 =
  26. 26.37.9 × 10 =
  27. 27.7.63 ÷ 1000 =
  28. 28.429.2 × 100 =
  29. 29.289.3 ÷ 10 =
  30. 30.129.3 ÷ 100 =
  31. 31.127.1 ÷ 1000 =
  32. 32.45.25 ÷ 1000 =
  33. 33.9.14 × 100 =
  34. 34.23.64 ÷ 100 =
  35. 35.1.52 ÷ 1000 =
  36. 36.33.95 × 100 =
  37. 37.49.05 × 10 =
  38. 38.8.27 ÷ 10 =
  39. 39.14.72 ÷ 10 =
  40. 40.27.3 × 100 =

Answer key

  1. 4.596
  2. 3711
  3. 0.3261
  4. 1.096
  5. 360600
  6. 28130
  7. 429400
  8. 367.9
  9. 9.72
  10. 0.4468
  11. 1.076
  12. 0.00054
  13. 15.88
  14. 4773
  15. 2049
  16. 0.2472
  17. 4601
  18. 22.39
  19. 658
  20. 3.486
  21. 0.852
  22. 0.1711
  23. 1242
  24. 1.02
  25. 2775
  26. 379
  27. 0.00763
  28. 42920
  29. 28.93
  30. 1.293
  31. 0.1271
  32. 0.04525
  33. 914
  34. 0.2364
  35. 0.00152
  36. 3395
  37. 490.5
  38. 0.827
  39. 1.472
  40. 2730

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