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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 276 · 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. 1.24.63 × 100 =
  2. 2.41.16 ÷ 100 =
  3. 3.7.61 × 100 =
  4. 4.1.09 × 10 =
  5. 5.499.1 ÷ 10 =
  6. 6.14.26 × 100 =
  7. 7.291.8 ÷ 100 =
  8. 8.381.2 × 100 =
  9. 9.432.2 × 100 =
  10. 10.11.91 × 100 =
  11. 11.115.3 × 100 =
  12. 12.454.9 × 1000 =
  13. 13.104.1 ÷ 10 =
  14. 14.62.5 ÷ 1000 =
  15. 15.117.7 × 10 =
  16. 16.40.26 ÷ 10 =
  17. 17.385.2 ÷ 100 =
  18. 18.280.7 × 1000 =
  19. 19.2.73 × 1000 =
  20. 20.72.1 ÷ 1000 =
  21. 21.19.41 ÷ 100 =
  22. 22.0.24 ÷ 1000 =
  23. 23.5.01 ÷ 1000 =
  24. 24.5.12 ÷ 100 =
  25. 25.113.4 ÷ 1000 =
  26. 26.26.31 × 1000 =
  27. 27.3.66 ÷ 10 =
  28. 28.494.3 × 1000 =
  29. 29.20.6 × 1000 =
  30. 30.8.8 × 10 =
  31. 31.65.1 × 1000 =
  32. 32.237.1 ÷ 10 =
  33. 33.43.22 ÷ 1000 =
  34. 34.7.64 × 1000 =
  35. 35.4.7 × 1000 =
  36. 36.48.87 × 1000 =
  37. 37.38.54 × 10 =
  38. 38.491.4 ÷ 100 =
  39. 39.55.2 ÷ 10 =
  40. 40.17.24 ÷ 10 =

Answer key

  1. 2463
  2. 0.4116
  3. 761
  4. 10.9
  5. 49.91
  6. 1426
  7. 2.918
  8. 38120
  9. 43220
  10. 1191
  11. 11530
  12. 454900
  13. 10.41
  14. 0.0625
  15. 1177
  16. 4.026
  17. 3.852
  18. 280700
  19. 2730
  20. 0.0721
  21. 0.1941
  22. 0.00024
  23. 0.00501
  24. 0.0512
  25. 0.1134
  26. 26310
  27. 0.366
  28. 494300
  29. 20600
  30. 88
  31. 65100
  32. 23.71
  33. 0.04322
  34. 7640
  35. 4700
  36. 48870
  37. 385.4
  38. 4.914
  39. 5.52
  40. 1.724

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