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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 588 · 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. 1.46.37 × 1000 =
  2. 2.88.4 × 10 =
  3. 3.6.14 ÷ 10 =
  4. 4.350.8 × 10 =
  5. 5.405.4 ÷ 10 =
  6. 6.44.81 × 1000 =
  7. 7.14.4 ÷ 100 =
  8. 8.476.8 × 10 =
  9. 9.332.6 ÷ 10 =
  10. 10.48.07 × 1000 =
  11. 11.45.97 ÷ 10 =
  12. 12.140.1 × 10 =
  13. 13.198.9 × 10 =
  14. 14.124.3 ÷ 1000 =
  15. 15.14.13 × 100 =
  16. 16.15.63 × 100 =
  17. 17.2.16 ÷ 100 =
  18. 18.10.62 ÷ 1000 =
  19. 19.19.41 × 100 =
  20. 20.340.6 × 1000 =
  21. 21.185.6 × 100 =
  22. 22.3.13 ÷ 10 =
  23. 23.310.2 ÷ 1000 =
  24. 24.205.9 × 1000 =
  25. 25.228.7 × 10 =
  26. 26.291.1 ÷ 100 =
  27. 27.33.42 × 10 =
  28. 28.22.13 × 10 =
  29. 29.292.6 × 10 =
  30. 30.347.8 ÷ 10 =
  31. 31.461.3 × 10 =
  32. 32.59.4 × 1000 =
  33. 33.77.3 ÷ 10 =
  34. 34.119.9 ÷ 10 =
  35. 35.32.46 ÷ 1000 =
  36. 36.218.9 × 1000 =
  37. 37.32.33 × 10 =
  38. 38.5.12 ÷ 100 =
  39. 39.256.4 × 1000 =
  40. 40.305.8 ÷ 1000 =

Answer key

  1. 46370
  2. 884
  3. 0.614
  4. 3508
  5. 40.54
  6. 44810
  7. 0.144
  8. 4768
  9. 33.26
  10. 48070
  11. 4.597
  12. 1401
  13. 1989
  14. 0.1243
  15. 1413
  16. 1563
  17. 0.0216
  18. 0.01062
  19. 1941
  20. 340600
  21. 18560
  22. 0.313
  23. 0.3102
  24. 205900
  25. 2287
  26. 2.911
  27. 334.2
  28. 221.3
  29. 2926
  30. 34.78
  31. 4613
  32. 59400
  33. 7.73
  34. 11.99
  35. 0.03246
  36. 218900
  37. 323.3
  38. 0.0512
  39. 256400
  40. 0.3058

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