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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 330 · 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. 1.18.41 ÷ 100 =
  2. 2.24.9 ÷ 10 =
  3. 3.156.4 ÷ 1000 =
  4. 4.476.4 × 1000 =
  5. 5.25.07 × 10 =
  6. 6.171.7 ÷ 1000 =
  7. 7.401.2 × 100 =
  8. 8.28.88 ÷ 10 =
  9. 9.311.6 ÷ 10 =
  10. 10.27.05 × 1000 =
  11. 11.215.9 ÷ 10 =
  12. 12.431.9 ÷ 100 =
  13. 13.108.7 × 1000 =
  14. 14.417.2 ÷ 10 =
  15. 15.217.1 ÷ 10 =
  16. 16.117.1 ÷ 1000 =
  17. 17.286.9 ÷ 10 =
  18. 18.20.55 ÷ 10 =
  19. 19.24.33 × 100 =
  20. 20.1.71 ÷ 100 =
  21. 21.9.82 ÷ 1000 =
  22. 22.348.7 × 10 =
  23. 23.144.2 ÷ 100 =
  24. 24.404.8 × 10 =
  25. 25.229.5 × 1000 =
  26. 26.30.1 ÷ 100 =
  27. 27.52.5 × 1000 =
  28. 28.48.04 × 100 =
  29. 29.245.1 × 10 =
  30. 30.29.17 × 10 =
  31. 31.112.4 ÷ 10 =
  32. 32.106.9 ÷ 100 =
  33. 33.349.2 ÷ 100 =
  34. 34.22.82 ÷ 10 =
  35. 35.11.2 × 10 =
  36. 36.485.9 ÷ 100 =
  37. 37.51.1 × 100 =
  38. 38.15.41 × 10 =
  39. 39.26.76 × 100 =
  40. 40.10.92 ÷ 10 =

Answer key

  1. 0.1841
  2. 2.49
  3. 0.1564
  4. 476400
  5. 250.7
  6. 0.1717
  7. 40120
  8. 2.888
  9. 31.16
  10. 27050
  11. 21.59
  12. 4.319
  13. 108700
  14. 41.72
  15. 21.71
  16. 0.1171
  17. 28.69
  18. 2.055
  19. 2433
  20. 0.0171
  21. 0.00982
  22. 3487
  23. 1.442
  24. 4048
  25. 229500
  26. 0.301
  27. 52500
  28. 4804
  29. 2451
  30. 291.7
  31. 11.24
  32. 1.069
  33. 3.492
  34. 2.282
  35. 112
  36. 4.859
  37. 5110
  38. 154.1
  39. 2676
  40. 1.092

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