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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 127 · 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 × 10 =
  2. 2.54.7 × 1000 =
  3. 3.45.1 ÷ 1000 =
  4. 4.46.88 ÷ 10 =
  5. 5.10.76 ÷ 1000 =
  6. 6.209.2 ÷ 1000 =
  7. 7.239.9 ÷ 1000 =
  8. 8.30.21 ÷ 10 =
  9. 9.19.79 × 1000 =
  10. 10.10.7 ÷ 10 =
  11. 11.10.44 × 10 =
  12. 12.18.89 ÷ 100 =
  13. 13.418.3 × 100 =
  14. 14.108.3 × 100 =
  15. 15.246.7 × 1000 =
  16. 16.190.4 ÷ 1000 =
  17. 17.12.84 ÷ 1000 =
  18. 18.284.2 ÷ 10 =
  19. 19.496.1 × 100 =
  20. 20.32.09 ÷ 100 =
  21. 21.7.65 ÷ 1000 =
  22. 22.1.54 × 100 =
  23. 23.19.29 ÷ 1000 =
  24. 24.476.2 ÷ 100 =
  25. 25.31.43 ÷ 10 =
  26. 26.19.18 ÷ 10 =
  27. 27.96.7 ÷ 100 =
  28. 28.39.43 × 100 =
  29. 29.9.57 ÷ 100 =
  30. 30.24.59 ÷ 10 =
  31. 31.495.5 ÷ 1000 =
  32. 32.5.56 ÷ 10 =
  33. 33.20.05 × 1000 =
  34. 34.31.93 ÷ 10 =
  35. 35.32.71 ÷ 10 =
  36. 36.21.39 × 1000 =
  37. 37.466.5 × 10 =
  38. 38.44.14 ÷ 1000 =
  39. 39.122.5 ÷ 10 =
  40. 40.419.1 ÷ 1000 =

Answer key

  1. 184.1
  2. 54700
  3. 0.0451
  4. 4.688
  5. 0.01076
  6. 0.2092
  7. 0.2399
  8. 3.021
  9. 19790
  10. 1.07
  11. 104.4
  12. 0.1889
  13. 41830
  14. 10830
  15. 246700
  16. 0.1904
  17. 0.01284
  18. 28.42
  19. 49610
  20. 0.3209
  21. 0.00765
  22. 154
  23. 0.01929
  24. 4.762
  25. 3.143
  26. 1.918
  27. 0.967
  28. 3943
  29. 0.0957
  30. 2.459
  31. 0.4955
  32. 0.556
  33. 20050
  34. 3.193
  35. 3.271
  36. 21390
  37. 4665
  38. 0.04414
  39. 12.25
  40. 0.4191

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