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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 808 · 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. 1.47.88 ÷ 1000 =
  2. 2.373.8 ÷ 10 =
  3. 3.6.02 ÷ 100 =
  4. 4.491.8 ÷ 100 =
  5. 5.19.38 ÷ 1000 =
  6. 6.42.7 ÷ 10 =
  7. 7.11.96 ÷ 1000 =
  8. 8.396.1 × 100 =
  9. 9.49.75 × 100 =
  10. 10.434.5 ÷ 1000 =
  11. 11.466.9 × 1000 =
  12. 12.7.01 × 100 =
  13. 13.7.58 ÷ 1000 =
  14. 14.2.79 ÷ 100 =
  15. 15.26.58 × 10 =
  16. 16.9.23 × 100 =
  17. 17.37.39 ÷ 1000 =
  18. 18.458.4 ÷ 10 =
  19. 19.143.2 × 1000 =
  20. 20.16.56 × 10 =
  21. 21.9.03 ÷ 10 =
  22. 22.447.7 × 1000 =
  23. 23.15.3 × 1000 =
  24. 24.16.37 ÷ 100 =
  25. 25.17.67 × 10 =
  26. 26.461.4 ÷ 1000 =
  27. 27.5.31 × 100 =
  28. 28.273.4 × 100 =
  29. 29.479.1 × 10 =
  30. 30.5.03 ÷ 100 =
  31. 31.44.36 × 10 =
  32. 32.54.2 × 1000 =
  33. 33.26.78 × 10 =
  34. 34.25.27 ÷ 100 =
  35. 35.434.8 × 10 =
  36. 36.30.19 ÷ 100 =
  37. 37.26.61 ÷ 100 =
  38. 38.24.4 × 100 =
  39. 39.162.4 ÷ 10 =
  40. 40.79.7 × 100 =

Answer key

  1. 0.04788
  2. 37.38
  3. 0.0602
  4. 4.918
  5. 0.01938
  6. 4.27
  7. 0.01196
  8. 39610
  9. 4975
  10. 0.4345
  11. 466900
  12. 701
  13. 0.00758
  14. 0.0279
  15. 265.8
  16. 923
  17. 0.03739
  18. 45.84
  19. 143200
  20. 165.6
  21. 0.903
  22. 447700
  23. 15300
  24. 0.1637
  25. 176.7
  26. 0.4614
  27. 531
  28. 27340
  29. 4791
  30. 0.0503
  31. 443.6
  32. 54200
  33. 267.8
  34. 0.2527
  35. 4348
  36. 0.3019
  37. 0.2661
  38. 2440
  39. 16.24
  40. 7970

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