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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 589 · 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. 1.41.39 ÷ 1000 =
  2. 2.327.9 × 1000 =
  3. 3.8.21 × 100 =
  4. 4.2.4 × 1000 =
  5. 5.191.8 × 1000 =
  6. 6.6.51 × 100 =
  7. 7.13.15 × 10 =
  8. 8.10.83 ÷ 1000 =
  9. 9.35.13 ÷ 10 =
  10. 10.55.1 ÷ 10 =
  11. 11.33.19 × 1000 =
  12. 12.40.45 × 100 =
  13. 13.130.2 ÷ 100 =
  14. 14.46.41 × 100 =
  15. 15.29.98 × 1000 =
  16. 16.16.14 × 1000 =
  17. 17.47.31 × 1000 =
  18. 18.24.2 ÷ 100 =
  19. 19.38.62 ÷ 10 =
  20. 20.4.89 × 1000 =
  21. 21.12.26 × 100 =
  22. 22.6.36 ÷ 10 =
  23. 23.42.56 × 100 =
  24. 24.34.07 ÷ 1000 =
  25. 25.425.4 × 10 =
  26. 26.429.3 × 1000 =
  27. 27.14.55 ÷ 100 =
  28. 28.140.3 ÷ 100 =
  29. 29.24.14 × 1000 =
  30. 30.82.3 × 100 =
  31. 31.32.61 × 10 =
  32. 32.389.7 ÷ 10 =
  33. 33.404.1 × 100 =
  34. 34.292.7 × 10 =
  35. 35.115.6 × 1000 =
  36. 36.379.8 ÷ 10 =
  37. 37.304.6 × 1000 =
  38. 38.286.2 × 10 =
  39. 39.2.04 × 10 =
  40. 40.400.7 ÷ 1000 =

Answer key

  1. 0.04139
  2. 327900
  3. 821
  4. 2400
  5. 191800
  6. 651
  7. 131.5
  8. 0.01083
  9. 3.513
  10. 5.51
  11. 33190
  12. 4045
  13. 1.302
  14. 4641
  15. 29980
  16. 16140
  17. 47310
  18. 0.242
  19. 3.862
  20. 4890
  21. 1226
  22. 0.636
  23. 4256
  24. 0.03407
  25. 4254
  26. 429300
  27. 0.1455
  28. 1.403
  29. 24140
  30. 8230
  31. 326.1
  32. 38.97
  33. 40410
  34. 2927
  35. 115600
  36. 37.98
  37. 304600
  38. 2862
  39. 20.4
  40. 0.4007

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