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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 469 · 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. 1.14.81 ÷ 1000 =
  2. 2.414.2 ÷ 100 =
  3. 3.390.1 ÷ 10 =
  4. 4.25.23 × 100 =
  5. 5.45.87 ÷ 100 =
  6. 6.35.35 ÷ 1000 =
  7. 7.396.9 ÷ 100 =
  8. 8.481.1 × 1000 =
  9. 9.5.23 × 10 =
  10. 10.239.5 × 100 =
  11. 11.5.1 ÷ 10 =
  12. 12.20.4 ÷ 1000 =
  13. 13.402.7 ÷ 1000 =
  14. 14.8.78 × 10 =
  15. 15.52.6 × 1000 =
  16. 16.45.33 × 10 =
  17. 17.185.1 ÷ 100 =
  18. 18.441.1 × 1000 =
  19. 19.313.4 × 10 =
  20. 20.250.5 ÷ 100 =
  21. 21.131.4 ÷ 10 =
  22. 22.336.9 × 1000 =
  23. 23.21.8 × 10 =
  24. 24.249.9 × 10 =
  25. 25.476.6 × 100 =
  26. 26.179.9 × 1000 =
  27. 27.179.1 × 10 =
  28. 28.20.69 × 10 =
  29. 29.4.93 ÷ 10 =
  30. 30.54.1 × 100 =
  31. 31.163.6 × 10 =
  32. 32.489.6 × 10 =
  33. 33.29.21 × 100 =
  34. 34.16.6 × 100 =
  35. 35.382.5 × 1000 =
  36. 36.21.08 × 10 =
  37. 37.59.1 ÷ 10 =
  38. 38.15.18 ÷ 10 =
  39. 39.237.1 × 1000 =
  40. 40.264.2 × 100 =

Answer key

  1. 0.01481
  2. 4.142
  3. 39.01
  4. 2523
  5. 0.4587
  6. 0.03535
  7. 3.969
  8. 481100
  9. 52.3
  10. 23950
  11. 0.51
  12. 0.0204
  13. 0.4027
  14. 87.8
  15. 52600
  16. 453.3
  17. 1.851
  18. 441100
  19. 3134
  20. 2.505
  21. 13.14
  22. 336900
  23. 218
  24. 2499
  25. 47660
  26. 179900
  27. 1791
  28. 206.9
  29. 0.493
  30. 5410
  31. 1636
  32. 4896
  33. 2921
  34. 1660
  35. 382500
  36. 210.8
  37. 5.91
  38. 1.518
  39. 237100
  40. 26420

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