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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 608 · 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. 1.346.3 ÷ 1000 =
  2. 2.11.26 ÷ 10 =
  3. 3.406.7 ÷ 10 =
  4. 4.9.45 × 10 =
  5. 5.417.7 × 100 =
  6. 6.1.76 × 100 =
  7. 7.25.6 ÷ 100 =
  8. 8.14.39 × 100 =
  9. 9.150.8 × 10 =
  10. 10.288.5 ÷ 10 =
  11. 11.37.08 ÷ 10 =
  12. 12.44.78 × 100 =
  13. 13.39.89 ÷ 1000 =
  14. 14.410.5 × 10 =
  15. 15.148.4 × 1000 =
  16. 16.201.4 × 100 =
  17. 17.47.82 ÷ 10 =
  18. 18.8.13 × 1000 =
  19. 19.146.9 ÷ 100 =
  20. 20.457.3 ÷ 100 =
  21. 21.0.72 × 100 =
  22. 22.5.36 × 10 =
  23. 23.491.1 ÷ 1000 =
  24. 24.32.3 × 1000 =
  25. 25.266.1 ÷ 100 =
  26. 26.373.7 × 10 =
  27. 27.21.47 × 100 =
  28. 28.234.9 ÷ 100 =
  29. 29.476.6 ÷ 1000 =
  30. 30.351.1 ÷ 10 =
  31. 31.27.54 × 100 =
  32. 32.22.9 × 100 =
  33. 33.48.79 ÷ 10 =
  34. 34.4.73 × 10 =
  35. 35.18.09 ÷ 100 =
  36. 36.196.9 ÷ 10 =
  37. 37.333.4 × 100 =
  38. 38.43.1 × 10 =
  39. 39.496.1 ÷ 10 =
  40. 40.362.1 × 1000 =

Answer key

  1. 0.3463
  2. 1.126
  3. 40.67
  4. 94.5
  5. 41770
  6. 176
  7. 0.256
  8. 1439
  9. 1508
  10. 28.85
  11. 3.708
  12. 4478
  13. 0.03989
  14. 4105
  15. 148400
  16. 20140
  17. 4.782
  18. 8130
  19. 1.469
  20. 4.573
  21. 72
  22. 53.6
  23. 0.4911
  24. 32300
  25. 2.661
  26. 3737
  27. 2147
  28. 2.349
  29. 0.4766
  30. 35.11
  31. 2754
  32. 2290
  33. 4.879
  34. 47.3
  35. 0.1809
  36. 19.69
  37. 33340
  38. 431
  39. 49.61
  40. 362100

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