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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 823 · 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. 1.433.6 ÷ 10 =
  2. 2.19.08 × 100 =
  3. 3.19.31 ÷ 10 =
  4. 4.37.33 ÷ 100 =
  5. 5.416.1 ÷ 1000 =
  6. 6.133.7 ÷ 100 =
  7. 7.43.28 ÷ 10 =
  8. 8.38.84 ÷ 100 =
  9. 9.424.8 ÷ 1000 =
  10. 10.452.8 ÷ 100 =
  11. 11.409.6 ÷ 100 =
  12. 12.2.31 ÷ 10 =
  13. 13.8.84 × 1000 =
  14. 14.292.9 ÷ 100 =
  15. 15.19.68 ÷ 10 =
  16. 16.463.9 ÷ 1000 =
  17. 17.17.11 × 1000 =
  18. 18.470.6 × 1000 =
  19. 19.208.8 × 10 =
  20. 20.20.19 ÷ 10 =
  21. 21.30.05 × 1000 =
  22. 22.310.1 × 100 =
  23. 23.28.54 ÷ 100 =
  24. 24.4.92 ÷ 1000 =
  25. 25.219.9 ÷ 1000 =
  26. 26.253.9 ÷ 10 =
  27. 27.40.22 ÷ 10 =
  28. 28.346.6 × 100 =
  29. 29.44.39 × 100 =
  30. 30.6.46 ÷ 1000 =
  31. 31.325.6 ÷ 100 =
  32. 32.124.1 ÷ 10 =
  33. 33.441.6 ÷ 1000 =
  34. 34.48.89 ÷ 1000 =
  35. 35.32.34 ÷ 10 =
  36. 36.45.99 ÷ 1000 =
  37. 37.268.1 × 1000 =
  38. 38.281.1 × 1000 =
  39. 39.49.38 ÷ 100 =
  40. 40.362.7 × 100 =

Answer key

  1. 43.36
  2. 1908
  3. 1.931
  4. 0.3733
  5. 0.4161
  6. 1.337
  7. 4.328
  8. 0.3884
  9. 0.4248
  10. 4.528
  11. 4.096
  12. 0.231
  13. 8840
  14. 2.929
  15. 1.968
  16. 0.4639
  17. 17110
  18. 470600
  19. 2088
  20. 2.019
  21. 30050
  22. 31010
  23. 0.2854
  24. 0.00492
  25. 0.2199
  26. 25.39
  27. 4.022
  28. 34660
  29. 4439
  30. 0.00646
  31. 3.256
  32. 12.41
  33. 0.4416
  34. 0.04889
  35. 3.234
  36. 0.04599
  37. 268100
  38. 281100
  39. 0.4938
  40. 36270

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