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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 434 · 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. 1.269.6 × 1000 =
  2. 2.39.08 ÷ 100 =
  3. 3.481.3 × 10 =
  4. 4.443.1 × 1000 =
  5. 5.35.98 × 1000 =
  6. 6.25.34 ÷ 100 =
  7. 7.370.7 × 1000 =
  8. 8.47.8 ÷ 1000 =
  9. 9.19.78 ÷ 10 =
  10. 10.11.4 × 1000 =
  11. 11.44.7 × 100 =
  12. 12.333.5 ÷ 10 =
  13. 13.37.57 × 1000 =
  14. 14.43.29 × 100 =
  15. 15.8.01 × 10 =
  16. 16.173.8 × 10 =
  17. 17.435.3 ÷ 1000 =
  18. 18.196.5 × 10 =
  19. 19.232.8 ÷ 10 =
  20. 20.407.4 ÷ 10 =
  21. 21.44.63 ÷ 10 =
  22. 22.5.75 ÷ 10 =
  23. 23.410.1 ÷ 10 =
  24. 24.46.32 ÷ 1000 =
  25. 25.391.6 × 10 =
  26. 26.37.97 × 1000 =
  27. 27.34.91 ÷ 100 =
  28. 28.3.44 ÷ 1000 =
  29. 29.183.7 × 10 =
  30. 30.392.7 × 100 =
  31. 31.353.1 × 1000 =
  32. 32.9.54 × 100 =
  33. 33.497.4 × 1000 =
  34. 34.18.69 × 100 =
  35. 35.28.11 × 100 =
  36. 36.8.87 × 10 =
  37. 37.252.6 ÷ 10 =
  38. 38.123.6 ÷ 10 =
  39. 39.7.9 ÷ 1000 =
  40. 40.18.12 × 10 =

Answer key

  1. 269600
  2. 0.3908
  3. 4813
  4. 443100
  5. 35980
  6. 0.2534
  7. 370700
  8. 0.0478
  9. 1.978
  10. 11400
  11. 4470
  12. 33.35
  13. 37570
  14. 4329
  15. 80.1
  16. 1738
  17. 0.4353
  18. 1965
  19. 23.28
  20. 40.74
  21. 4.463
  22. 0.575
  23. 41.01
  24. 0.04632
  25. 3916
  26. 37970
  27. 0.3491
  28. 0.00344
  29. 1837
  30. 39270
  31. 353100
  32. 954
  33. 497400
  34. 1869
  35. 2811
  36. 88.7
  37. 25.26
  38. 12.36
  39. 0.0079
  40. 181.2

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