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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 576 · 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. 1.82.3 × 10 =
  2. 2.281.1 ÷ 10 =
  3. 3.33.07 ÷ 1000 =
  4. 4.295.4 ÷ 10 =
  5. 5.147.4 ÷ 1000 =
  6. 6.319.1 × 1000 =
  7. 7.29.45 × 10 =
  8. 8.339.5 ÷ 10 =
  9. 9.75.9 ÷ 1000 =
  10. 10.298.6 × 1000 =
  11. 11.332.1 × 10 =
  12. 12.99.7 × 100 =
  13. 13.33.69 ÷ 10 =
  14. 14.292.7 ÷ 10 =
  15. 15.5.74 ÷ 100 =
  16. 16.33.01 × 1000 =
  17. 17.17.05 ÷ 1000 =
  18. 18.17.96 ÷ 100 =
  19. 19.276.5 × 1000 =
  20. 20.435.1 × 100 =
  21. 21.38.14 ÷ 10 =
  22. 22.1.51 × 100 =
  23. 23.28.56 × 1000 =
  24. 24.24.73 ÷ 100 =
  25. 25.24.6 ÷ 100 =
  26. 26.10.92 ÷ 10 =
  27. 27.363.3 ÷ 1000 =
  28. 28.404.4 ÷ 10 =
  29. 29.101.6 × 10 =
  30. 30.381.7 ÷ 100 =
  31. 31.425.7 × 1000 =
  32. 32.47.93 ÷ 10 =
  33. 33.48.44 × 100 =
  34. 34.448.4 × 100 =
  35. 35.36.06 ÷ 1000 =
  36. 36.459.4 ÷ 10 =
  37. 37.44.56 × 100 =
  38. 38.116.7 × 1000 =
  39. 39.234.5 × 10 =
  40. 40.467.5 × 10 =

Answer key

  1. 823
  2. 28.11
  3. 0.03307
  4. 29.54
  5. 0.1474
  6. 319100
  7. 294.5
  8. 33.95
  9. 0.0759
  10. 298600
  11. 3321
  12. 9970
  13. 3.369
  14. 29.27
  15. 0.0574
  16. 33010
  17. 0.01705
  18. 0.1796
  19. 276500
  20. 43510
  21. 3.814
  22. 151
  23. 28560
  24. 0.2473
  25. 0.246
  26. 1.092
  27. 0.3633
  28. 40.44
  29. 1016
  30. 3.817
  31. 425700
  32. 4.793
  33. 4844
  34. 44840
  35. 0.03606
  36. 45.94
  37. 4456
  38. 116700
  39. 2345
  40. 4675

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