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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 13 · 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. 1.42.72 × 1000 =
  2. 2.157.3 ÷ 1000 =
  3. 3.15.28 ÷ 1000 =
  4. 4.461.4 ÷ 10 =
  5. 5.208.5 × 10 =
  6. 6.272.4 × 100 =
  7. 7.308.6 ÷ 10 =
  8. 8.355.8 ÷ 100 =
  9. 9.96.8 × 10 =
  10. 10.49.81 × 1000 =
  11. 11.44.21 ÷ 1000 =
  12. 12.355.4 ÷ 1000 =
  13. 13.433.9 ÷ 10 =
  14. 14.22.01 ÷ 10 =
  15. 15.194.4 ÷ 10 =
  16. 16.149.3 × 100 =
  17. 17.210.2 × 1000 =
  18. 18.29.92 × 100 =
  19. 19.112.1 ÷ 100 =
  20. 20.491.6 × 1000 =
  21. 21.7.23 × 1000 =
  22. 22.427.7 ÷ 10 =
  23. 23.279.8 × 10 =
  24. 24.15.98 ÷ 100 =
  25. 25.87.7 × 10 =
  26. 26.20.41 ÷ 10 =
  27. 27.375.1 × 10 =
  28. 28.47.51 × 100 =
  29. 29.30.91 ÷ 1000 =
  30. 30.4.99 × 1000 =
  31. 31.175.2 ÷ 1000 =
  32. 32.45.13 ÷ 10 =
  33. 33.194.4 ÷ 100 =
  34. 34.27.01 ÷ 1000 =
  35. 35.0.65 × 100 =
  36. 36.26.84 ÷ 10 =
  37. 37.109.1 ÷ 10 =
  38. 38.12.36 ÷ 100 =
  39. 39.17.67 × 100 =
  40. 40.347.2 × 100 =

Answer key

  1. 42720
  2. 0.1573
  3. 0.01528
  4. 46.14
  5. 2085
  6. 27240
  7. 30.86
  8. 3.558
  9. 968
  10. 49810
  11. 0.04421
  12. 0.3554
  13. 43.39
  14. 2.201
  15. 19.44
  16. 14930
  17. 210200
  18. 2992
  19. 1.121
  20. 491600
  21. 7230
  22. 42.77
  23. 2798
  24. 0.1598
  25. 877
  26. 2.041
  27. 3751
  28. 4751
  29. 0.03091
  30. 4990
  31. 0.1752
  32. 4.513
  33. 1.944
  34. 0.02701
  35. 65
  36. 2.684
  37. 10.91
  38. 0.1236
  39. 1767
  40. 34720

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