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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 253 · 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. 1.151.9 ÷ 100 =
  2. 2.13.78 ÷ 100 =
  3. 3.131.6 × 100 =
  4. 4.212.1 × 100 =
  5. 5.106.5 ÷ 10 =
  6. 6.40.99 ÷ 1000 =
  7. 7.4.01 ÷ 10 =
  8. 8.497.1 × 10 =
  9. 9.5.22 ÷ 10 =
  10. 10.419.9 ÷ 10 =
  11. 11.31.67 × 1000 =
  12. 12.140.2 × 1000 =
  13. 13.317.3 ÷ 100 =
  14. 14.4.63 ÷ 10 =
  15. 15.2.39 × 10 =
  16. 16.102.3 × 100 =
  17. 17.41.73 ÷ 10 =
  18. 18.23.7 ÷ 10 =
  19. 19.58.9 × 1000 =
  20. 20.453.4 ÷ 1000 =
  21. 21.166.4 ÷ 100 =
  22. 22.52.1 ÷ 10 =
  23. 23.47.07 ÷ 100 =
  24. 24.48.39 × 1000 =
  25. 25.375.8 ÷ 1000 =
  26. 26.29.14 × 100 =
  27. 27.25.07 ÷ 1000 =
  28. 28.314.9 × 1000 =
  29. 29.234.7 ÷ 10 =
  30. 30.42.84 ÷ 100 =
  31. 31.19.87 × 100 =
  32. 32.38.81 × 10 =
  33. 33.86.5 ÷ 10 =
  34. 34.24.37 ÷ 10 =
  35. 35.46.99 × 1000 =
  36. 36.26.33 ÷ 1000 =
  37. 37.398.4 ÷ 1000 =
  38. 38.5.23 ÷ 10 =
  39. 39.288.6 ÷ 100 =
  40. 40.27.08 ÷ 10 =

Answer key

  1. 1.519
  2. 0.1378
  3. 13160
  4. 21210
  5. 10.65
  6. 0.04099
  7. 0.401
  8. 4971
  9. 0.522
  10. 41.99
  11. 31670
  12. 140200
  13. 3.173
  14. 0.463
  15. 23.9
  16. 10230
  17. 4.173
  18. 2.37
  19. 58900
  20. 0.4534
  21. 1.664
  22. 5.21
  23. 0.4707
  24. 48390
  25. 0.3758
  26. 2914
  27. 0.02507
  28. 314900
  29. 23.47
  30. 0.4284
  31. 1987
  32. 388.1
  33. 8.65
  34. 2.437
  35. 46990
  36. 0.02633
  37. 0.3984
  38. 0.523
  39. 2.886
  40. 2.708

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