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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 912 · 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. 1.19.04 ÷ 100 =
  2. 2.2.47 ÷ 1000 =
  3. 3.357.5 ÷ 10 =
  4. 4.40.41 × 1000 =
  5. 5.6.5 ÷ 10 =
  6. 6.21.45 × 1000 =
  7. 7.18.84 × 100 =
  8. 8.32.1 × 1000 =
  9. 9.4.31 ÷ 100 =
  10. 10.329.5 × 100 =
  11. 11.37.02 × 1000 =
  12. 12.5.75 × 100 =
  13. 13.4.76 × 10 =
  14. 14.496.2 × 100 =
  15. 15.3.01 ÷ 100 =
  16. 16.156.4 × 10 =
  17. 17.13.57 × 10 =
  18. 18.1.91 × 10 =
  19. 19.133.1 × 100 =
  20. 20.55.1 ÷ 10 =
  21. 21.0.21 ÷ 10 =
  22. 22.26.87 × 100 =
  23. 23.317.1 ÷ 10 =
  24. 24.37.19 × 1000 =
  25. 25.3.73 × 1000 =
  26. 26.1.32 × 100 =
  27. 27.23.09 ÷ 1000 =
  28. 28.49.31 × 1000 =
  29. 29.374.5 × 1000 =
  30. 30.79.2 ÷ 100 =
  31. 31.452.3 × 1000 =
  32. 32.11.1 ÷ 1000 =
  33. 33.135.9 ÷ 10 =
  34. 34.245.1 × 1000 =
  35. 35.414.1 ÷ 10 =
  36. 36.39.88 ÷ 1000 =
  37. 37.384.1 × 1000 =
  38. 38.9.16 × 1000 =
  39. 39.478.6 ÷ 100 =
  40. 40.42.84 × 10 =

Answer key

  1. 0.1904
  2. 0.00247
  3. 35.75
  4. 40410
  5. 0.65
  6. 21450
  7. 1884
  8. 32100
  9. 0.0431
  10. 32950
  11. 37020
  12. 575
  13. 47.6
  14. 49620
  15. 0.0301
  16. 1564
  17. 135.7
  18. 19.1
  19. 13310
  20. 5.51
  21. 0.021
  22. 2687
  23. 31.71
  24. 37190
  25. 3730
  26. 132
  27. 0.02309
  28. 49310
  29. 374500
  30. 0.792
  31. 452300
  32. 0.0111
  33. 13.59
  34. 245100
  35. 41.41
  36. 0.03988
  37. 384100
  38. 9160
  39. 4.786
  40. 428.4

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