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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 75 · 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. 1.16.49 ÷ 1000 =
  2. 2.354.2 × 1000 =
  3. 3.48.88 × 100 =
  4. 4.200.8 ÷ 10 =
  5. 5.71.9 ÷ 1000 =
  6. 6.199.1 × 1000 =
  7. 7.174.1 × 10 =
  8. 8.6.87 × 100 =
  9. 9.18.65 ÷ 100 =
  10. 10.26.01 × 100 =
  11. 11.289.7 ÷ 1000 =
  12. 12.155.2 × 1000 =
  13. 13.28.65 × 1000 =
  14. 14.22.88 ÷ 100 =
  15. 15.491.4 × 10 =
  16. 16.15.38 ÷ 1000 =
  17. 17.18.97 × 1000 =
  18. 18.401.7 ÷ 10 =
  19. 19.12.58 × 10 =
  20. 20.29.66 × 1000 =
  21. 21.361.1 × 100 =
  22. 22.416.5 ÷ 1000 =
  23. 23.12.57 ÷ 10 =
  24. 24.296.8 × 100 =
  25. 25.108.8 × 10 =
  26. 26.212.3 × 1000 =
  27. 27.440.5 ÷ 100 =
  28. 28.10.94 × 100 =
  29. 29.384.4 × 10 =
  30. 30.44.2 ÷ 100 =
  31. 31.79.1 ÷ 100 =
  32. 32.47.54 ÷ 10 =
  33. 33.29.68 × 100 =
  34. 34.100.8 ÷ 10 =
  35. 35.225.1 × 100 =
  36. 36.119.1 × 100 =
  37. 37.14.81 × 10 =
  38. 38.390.5 ÷ 1000 =
  39. 39.96.2 ÷ 10 =
  40. 40.8.64 ÷ 1000 =

Answer key

  1. 0.01649
  2. 354200
  3. 4888
  4. 20.08
  5. 0.0719
  6. 199100
  7. 1741
  8. 687
  9. 0.1865
  10. 2601
  11. 0.2897
  12. 155200
  13. 28650
  14. 0.2288
  15. 4914
  16. 0.01538
  17. 18970
  18. 40.17
  19. 125.8
  20. 29660
  21. 36110
  22. 0.4165
  23. 1.257
  24. 29680
  25. 1088
  26. 212300
  27. 4.405
  28. 1094
  29. 3844
  30. 0.442
  31. 0.791
  32. 4.754
  33. 2968
  34. 10.08
  35. 22510
  36. 11910
  37. 148.1
  38. 0.3905
  39. 9.62
  40. 0.00864

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