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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 403 · 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. 1.267.4 × 1000 =
  2. 2.265.5 × 10 =
  3. 3.18.99 ÷ 1000 =
  4. 4.37.77 × 10 =
  5. 5.41.82 × 100 =
  6. 6.9.22 × 10 =
  7. 7.330.2 × 100 =
  8. 8.12.08 ÷ 100 =
  9. 9.123.1 ÷ 100 =
  10. 10.416.9 × 10 =
  11. 11.3.64 × 1000 =
  12. 12.10.03 × 10 =
  13. 13.26.88 × 1000 =
  14. 14.13.5 ÷ 10 =
  15. 15.20.21 × 10 =
  16. 16.7.16 × 10 =
  17. 17.10.46 × 100 =
  18. 18.259.7 ÷ 10 =
  19. 19.444.3 ÷ 100 =
  20. 20.163.6 ÷ 100 =
  21. 21.35.81 ÷ 1000 =
  22. 22.1.3 ÷ 1000 =
  23. 23.12.92 × 100 =
  24. 24.361.1 ÷ 10 =
  25. 25.472.9 ÷ 100 =
  26. 26.23.31 × 100 =
  27. 27.253.8 × 1000 =
  28. 28.33.43 ÷ 100 =
  29. 29.41.9 ÷ 1000 =
  30. 30.77.1 × 100 =
  31. 31.47.69 × 1000 =
  32. 32.47.43 × 1000 =
  33. 33.32.7 × 100 =
  34. 34.36.01 × 1000 =
  35. 35.271.1 ÷ 1000 =
  36. 36.81.6 × 100 =
  37. 37.31.79 ÷ 10 =
  38. 38.8.99 × 1000 =
  39. 39.41.77 ÷ 100 =
  40. 40.8.45 ÷ 1000 =

Answer key

  1. 267400
  2. 2655
  3. 0.01899
  4. 377.7
  5. 4182
  6. 92.2
  7. 33020
  8. 0.1208
  9. 1.231
  10. 4169
  11. 3640
  12. 100.3
  13. 26880
  14. 1.35
  15. 202.1
  16. 71.6
  17. 1046
  18. 25.97
  19. 4.443
  20. 1.636
  21. 0.03581
  22. 0.0013
  23. 1292
  24. 36.11
  25. 4.729
  26. 2331
  27. 253800
  28. 0.3343
  29. 0.0419
  30. 7710
  31. 47690
  32. 47430
  33. 3270
  34. 36010
  35. 0.2711
  36. 8160
  37. 3.179
  38. 8990
  39. 0.4177
  40. 0.00845

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