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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 862 · 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. 1.189.5 × 1000 =
  2. 2.5.26 × 100 =
  3. 3.4.08 ÷ 1000 =
  4. 4.73.1 × 10 =
  5. 5.25.97 ÷ 100 =
  6. 6.105.1 ÷ 10 =
  7. 7.16.06 × 1000 =
  8. 8.24.53 ÷ 100 =
  9. 9.2.57 ÷ 100 =
  10. 10.10.49 × 100 =
  11. 11.85.9 ÷ 1000 =
  12. 12.44.7 × 10 =
  13. 13.37.07 ÷ 10 =
  14. 14.431.8 ÷ 10 =
  15. 15.223.4 ÷ 1000 =
  16. 16.470.7 × 100 =
  17. 17.442.2 ÷ 10 =
  18. 18.277.3 × 1000 =
  19. 19.14.37 ÷ 10 =
  20. 20.355.8 × 1000 =
  21. 21.119.3 × 10 =
  22. 22.450.8 × 1000 =
  23. 23.9.72 ÷ 1000 =
  24. 24.7.62 × 1000 =
  25. 25.49.22 × 1000 =
  26. 26.190.2 ÷ 1000 =
  27. 27.131.2 × 10 =
  28. 28.40.71 × 1000 =
  29. 29.255.5 ÷ 1000 =
  30. 30.10.77 ÷ 100 =
  31. 31.377.3 × 10 =
  32. 32.26.31 × 1000 =
  33. 33.214.3 ÷ 1000 =
  34. 34.29.01 × 1000 =
  35. 35.9.52 ÷ 1000 =
  36. 36.47.79 × 10 =
  37. 37.49.91 ÷ 100 =
  38. 38.258.9 ÷ 100 =
  39. 39.292.6 × 10 =
  40. 40.368.2 ÷ 1000 =

Answer key

  1. 189500
  2. 526
  3. 0.00408
  4. 731
  5. 0.2597
  6. 10.51
  7. 16060
  8. 0.2453
  9. 0.0257
  10. 1049
  11. 0.0859
  12. 447
  13. 3.707
  14. 43.18
  15. 0.2234
  16. 47070
  17. 44.22
  18. 277300
  19. 1.437
  20. 355800
  21. 1193
  22. 450800
  23. 0.00972
  24. 7620
  25. 49220
  26. 0.1902
  27. 1312
  28. 40710
  29. 0.2555
  30. 0.1077
  31. 3773
  32. 26310
  33. 0.2143
  34. 29010
  35. 0.00952
  36. 477.9
  37. 0.4991
  38. 2.589
  39. 2926
  40. 0.3682

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