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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 416 · 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. 1.5.21 ÷ 1000 =
  2. 2.414.6 ÷ 1000 =
  3. 3.46.59 ÷ 1000 =
  4. 4.367.7 ÷ 100 =
  5. 5.85.2 × 10 =
  6. 6.172.2 ÷ 1000 =
  7. 7.28.73 × 10 =
  8. 8.291.1 × 1000 =
  9. 9.200.6 × 100 =
  10. 10.7.72 × 100 =
  11. 11.46.34 × 10 =
  12. 12.16.74 × 10 =
  13. 13.340.3 ÷ 10 =
  14. 14.25.29 ÷ 100 =
  15. 15.1.45 ÷ 100 =
  16. 16.44.84 ÷ 100 =
  17. 17.47.95 × 1000 =
  18. 18.183.2 × 10 =
  19. 19.373.8 ÷ 1000 =
  20. 20.38.99 ÷ 100 =
  21. 21.18.41 × 10 =
  22. 22.245.5 × 10 =
  23. 23.190.8 × 1000 =
  24. 24.406.5 ÷ 10 =
  25. 25.12.71 ÷ 10 =
  26. 26.18.86 × 100 =
  27. 27.6.53 ÷ 10 =
  28. 28.36.35 × 1000 =
  29. 29.270.4 × 100 =
  30. 30.281.6 ÷ 10 =
  31. 31.21.61 ÷ 1000 =
  32. 32.1.92 × 10 =
  33. 33.18.97 ÷ 10 =
  34. 34.127.7 ÷ 10 =
  35. 35.30.09 × 10 =
  36. 36.21.24 ÷ 100 =
  37. 37.5.97 × 100 =
  38. 38.41.74 ÷ 100 =
  39. 39.31.56 ÷ 1000 =
  40. 40.310.7 × 10 =

Answer key

  1. 0.00521
  2. 0.4146
  3. 0.04659
  4. 3.677
  5. 852
  6. 0.1722
  7. 287.3
  8. 291100
  9. 20060
  10. 772
  11. 463.4
  12. 167.4
  13. 34.03
  14. 0.2529
  15. 0.0145
  16. 0.4484
  17. 47950
  18. 1832
  19. 0.3738
  20. 0.3899
  21. 184.1
  22. 2455
  23. 190800
  24. 40.65
  25. 1.271
  26. 1886
  27. 0.653
  28. 36350
  29. 27040
  30. 28.16
  31. 0.02161
  32. 19.2
  33. 1.897
  34. 12.77
  35. 300.9
  36. 0.2124
  37. 597
  38. 0.4174
  39. 0.03156
  40. 3107

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