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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 509 · 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. 1.202.1 ÷ 10 =
  2. 2.45.4 ÷ 1000 =
  3. 3.26.1 × 10 =
  4. 4.3.42 × 10 =
  5. 5.11.95 ÷ 100 =
  6. 6.62.6 × 1000 =
  7. 7.147.3 ÷ 100 =
  8. 8.448.2 × 10 =
  9. 9.6.7 × 1000 =
  10. 10.41.58 × 10 =
  11. 11.69.8 ÷ 1000 =
  12. 12.251.8 ÷ 1000 =
  13. 13.235.2 × 10 =
  14. 14.266.4 × 100 =
  15. 15.13.02 × 100 =
  16. 16.283.1 ÷ 10 =
  17. 17.218.2 ÷ 10 =
  18. 18.33.79 × 10 =
  19. 19.6.6 ÷ 10 =
  20. 20.18.59 ÷ 1000 =
  21. 21.40.77 × 100 =
  22. 22.342.4 × 10 =
  23. 23.392.8 ÷ 100 =
  24. 24.101.1 ÷ 1000 =
  25. 25.115.2 ÷ 10 =
  26. 26.30.02 ÷ 1000 =
  27. 27.48.4 × 1000 =
  28. 28.187.1 ÷ 10 =
  29. 29.240.6 × 100 =
  30. 30.44.85 × 1000 =
  31. 31.13.26 ÷ 10 =
  32. 32.7.51 × 1000 =
  33. 33.27.56 × 10 =
  34. 34.15.35 × 100 =
  35. 35.124.5 ÷ 10 =
  36. 36.474.8 ÷ 1000 =
  37. 37.28.71 × 100 =
  38. 38.48.5 ÷ 1000 =
  39. 39.14.36 ÷ 1000 =
  40. 40.296.1 × 10 =

Answer key

  1. 20.21
  2. 0.0454
  3. 261
  4. 34.2
  5. 0.1195
  6. 62600
  7. 1.473
  8. 4482
  9. 6700
  10. 415.8
  11. 0.0698
  12. 0.2518
  13. 2352
  14. 26640
  15. 1302
  16. 28.31
  17. 21.82
  18. 337.9
  19. 0.66
  20. 0.01859
  21. 4077
  22. 3424
  23. 3.928
  24. 0.1011
  25. 11.52
  26. 0.03002
  27. 48400
  28. 18.71
  29. 24060
  30. 44850
  31. 1.326
  32. 7510
  33. 275.6
  34. 1535
  35. 12.45
  36. 0.4748
  37. 2871
  38. 0.0485
  39. 0.01436
  40. 2961

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