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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 637 · 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. 1.10.44 × 100 =
  2. 2.2.77 ÷ 10 =
  3. 3.25.76 × 10 =
  4. 4.490.6 × 1000 =
  5. 5.5.29 × 100 =
  6. 6.396.1 × 10 =
  7. 7.340.6 × 100 =
  8. 8.330.8 × 100 =
  9. 9.187.2 ÷ 1000 =
  10. 10.42.29 × 10 =
  11. 11.200.8 × 10 =
  12. 12.43.27 × 10 =
  13. 13.37.36 ÷ 100 =
  14. 14.372.4 ÷ 10 =
  15. 15.111.1 ÷ 10 =
  16. 16.32.31 × 100 =
  17. 17.45.93 × 100 =
  18. 18.386.4 ÷ 1000 =
  19. 19.29.02 ÷ 1000 =
  20. 20.13.15 × 10 =
  21. 21.49.51 ÷ 100 =
  22. 22.11.97 × 10 =
  23. 23.421.1 × 1000 =
  24. 24.21.76 ÷ 1000 =
  25. 25.27.92 ÷ 100 =
  26. 26.360.8 × 1000 =
  27. 27.22.01 ÷ 10 =
  28. 28.363.6 × 1000 =
  29. 29.48.14 × 1000 =
  30. 30.177.8 ÷ 10 =
  31. 31.155.6 ÷ 100 =
  32. 32.384.4 ÷ 1000 =
  33. 33.495.7 × 10 =
  34. 34.32.17 × 100 =
  35. 35.413.4 × 100 =
  36. 36.3.71 × 1000 =
  37. 37.390.3 × 10 =
  38. 38.403.8 × 10 =
  39. 39.61.7 ÷ 100 =
  40. 40.5.8 × 10 =

Answer key

  1. 1044
  2. 0.277
  3. 257.6
  4. 490600
  5. 529
  6. 3961
  7. 34060
  8. 33080
  9. 0.1872
  10. 422.9
  11. 2008
  12. 432.7
  13. 0.3736
  14. 37.24
  15. 11.11
  16. 3231
  17. 4593
  18. 0.3864
  19. 0.02902
  20. 131.5
  21. 0.4951
  22. 119.7
  23. 421100
  24. 0.02176
  25. 0.2792
  26. 360800
  27. 2.201
  28. 363600
  29. 48140
  30. 17.78
  31. 1.556
  32. 0.3844
  33. 4957
  34. 3217
  35. 41340
  36. 3710
  37. 3903
  38. 4038
  39. 0.617
  40. 58

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