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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 702 · 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. 1.17.41 × 100 =
  2. 2.103.5 × 100 =
  3. 3.26.43 × 1000 =
  4. 4.21.71 ÷ 1000 =
  5. 5.3.1 × 100 =
  6. 6.8.8 ÷ 10 =
  7. 7.27.89 ÷ 1000 =
  8. 8.11.71 ÷ 10 =
  9. 9.219.2 × 1000 =
  10. 10.376.1 ÷ 100 =
  11. 11.20.27 ÷ 100 =
  12. 12.296.1 ÷ 10 =
  13. 13.43.3 ÷ 10 =
  14. 14.175.2 × 10 =
  15. 15.15.09 × 1000 =
  16. 16.268.4 ÷ 100 =
  17. 17.128.6 ÷ 100 =
  18. 18.159.1 ÷ 10 =
  19. 19.115.2 ÷ 1000 =
  20. 20.1.3 ÷ 10 =
  21. 21.122.7 × 10 =
  22. 22.37.61 × 1000 =
  23. 23.282.2 × 100 =
  24. 24.329.8 ÷ 100 =
  25. 25.48.06 ÷ 100 =
  26. 26.26.65 × 1000 =
  27. 27.282.4 ÷ 1000 =
  28. 28.20.08 × 1000 =
  29. 29.411.5 × 1000 =
  30. 30.50.1 ÷ 10 =
  31. 31.39.77 × 10 =
  32. 32.68.6 ÷ 10 =
  33. 33.150.6 ÷ 1000 =
  34. 34.263.3 ÷ 1000 =
  35. 35.4.04 × 1000 =
  36. 36.18.53 ÷ 100 =
  37. 37.120.3 ÷ 100 =
  38. 38.337.8 × 1000 =
  39. 39.11.71 × 10 =
  40. 40.365.5 × 100 =

Answer key

  1. 1741
  2. 10350
  3. 26430
  4. 0.02171
  5. 310
  6. 0.88
  7. 0.02789
  8. 1.171
  9. 219200
  10. 3.761
  11. 0.2027
  12. 29.61
  13. 4.33
  14. 1752
  15. 15090
  16. 2.684
  17. 1.286
  18. 15.91
  19. 0.1152
  20. 0.13
  21. 1227
  22. 37610
  23. 28220
  24. 3.298
  25. 0.4806
  26. 26650
  27. 0.2824
  28. 20080
  29. 411500
  30. 5.01
  31. 397.7
  32. 6.86
  33. 0.1506
  34. 0.2633
  35. 4040
  36. 0.1853
  37. 1.203
  38. 337800
  39. 117.1
  40. 36550

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