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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 462 · 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. 1.43.37 ÷ 10 =
  2. 2.27.47 × 1000 =
  3. 3.355.7 × 100 =
  4. 4.136.2 × 10 =
  5. 5.3.71 ÷ 10 =
  6. 6.281.2 × 10 =
  7. 7.108.1 ÷ 100 =
  8. 8.247.1 ÷ 1000 =
  9. 9.105.8 × 1000 =
  10. 10.468.1 ÷ 1000 =
  11. 11.3.52 × 1000 =
  12. 12.39.44 × 1000 =
  13. 13.39.66 ÷ 1000 =
  14. 14.6.91 ÷ 100 =
  15. 15.28.59 × 10 =
  16. 16.48.61 ÷ 10 =
  17. 17.41.95 × 100 =
  18. 18.84.2 ÷ 10 =
  19. 19.13.79 ÷ 1000 =
  20. 20.43.2 ÷ 10 =
  21. 21.34.12 ÷ 10 =
  22. 22.422.6 × 100 =
  23. 23.2.01 × 100 =
  24. 24.383.1 ÷ 1000 =
  25. 25.22.06 × 10 =
  26. 26.33.93 × 10 =
  27. 27.28.43 ÷ 100 =
  28. 28.189.1 ÷ 10 =
  29. 29.12.84 × 10 =
  30. 30.7.25 ÷ 10 =
  31. 31.11.91 × 10 =
  32. 32.266.6 × 10 =
  33. 33.296.2 × 10 =
  34. 34.38.81 × 100 =
  35. 35.431.8 ÷ 1000 =
  36. 36.105.1 × 100 =
  37. 37.42.67 × 100 =
  38. 38.40.4 ÷ 100 =
  39. 39.11.28 ÷ 100 =
  40. 40.10.36 × 10 =

Answer key

  1. 4.337
  2. 27470
  3. 35570
  4. 1362
  5. 0.371
  6. 2812
  7. 1.081
  8. 0.2471
  9. 105800
  10. 0.4681
  11. 3520
  12. 39440
  13. 0.03966
  14. 0.0691
  15. 285.9
  16. 4.861
  17. 4195
  18. 8.42
  19. 0.01379
  20. 4.32
  21. 3.412
  22. 42260
  23. 201
  24. 0.3831
  25. 220.6
  26. 339.3
  27. 0.2843
  28. 18.91
  29. 128.4
  30. 0.725
  31. 119.1
  32. 2666
  33. 2962
  34. 3881
  35. 0.4318
  36. 10510
  37. 4267
  38. 0.404
  39. 0.1128
  40. 103.6

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