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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 206 · 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. 1.383.5 ÷ 100 =
  2. 2.40.51 × 1000 =
  3. 3.24.78 ÷ 10 =
  4. 4.10.96 × 100 =
  5. 5.5.01 × 1000 =
  6. 6.74.1 × 100 =
  7. 7.3.3 × 100 =
  8. 8.171.1 ÷ 1000 =
  9. 9.485.5 ÷ 10 =
  10. 10.29.9 × 100 =
  11. 11.302.3 ÷ 1000 =
  12. 12.493.2 × 1000 =
  13. 13.34.73 × 100 =
  14. 14.289.5 × 100 =
  15. 15.431.1 ÷ 1000 =
  16. 16.131.9 × 1000 =
  17. 17.220.3 × 100 =
  18. 18.391.1 ÷ 1000 =
  19. 19.43.06 × 1000 =
  20. 20.31.17 ÷ 10 =
  21. 21.227.1 × 10 =
  22. 22.11.89 ÷ 100 =
  23. 23.37.59 × 10 =
  24. 24.29.84 × 1000 =
  25. 25.2.25 × 100 =
  26. 26.31.37 × 10 =
  27. 27.82.1 ÷ 1000 =
  28. 28.31.31 ÷ 100 =
  29. 29.156.1 × 10 =
  30. 30.306.1 × 10 =
  31. 31.180.9 ÷ 1000 =
  32. 32.139.2 ÷ 10 =
  33. 33.136.1 × 10 =
  34. 34.75.3 ÷ 10 =
  35. 35.8.71 × 100 =
  36. 36.13.51 ÷ 100 =
  37. 37.25.35 × 1000 =
  38. 38.15.74 ÷ 10 =
  39. 39.48.68 ÷ 1000 =
  40. 40.28.1 × 100 =

Answer key

  1. 3.835
  2. 40510
  3. 2.478
  4. 1096
  5. 5010
  6. 7410
  7. 330
  8. 0.1711
  9. 48.55
  10. 2990
  11. 0.3023
  12. 493200
  13. 3473
  14. 28950
  15. 0.4311
  16. 131900
  17. 22030
  18. 0.3911
  19. 43060
  20. 3.117
  21. 2271
  22. 0.1189
  23. 375.9
  24. 29840
  25. 225
  26. 313.7
  27. 0.0821
  28. 0.3131
  29. 1561
  30. 3061
  31. 0.1809
  32. 13.92
  33. 1361
  34. 7.53
  35. 871
  36. 0.1351
  37. 25350
  38. 1.574
  39. 0.04868
  40. 2810

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