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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 940 · 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. 1.15.97 ÷ 1000 =
  2. 2.14.18 × 1000 =
  3. 3.262.8 × 10 =
  4. 4.326.6 × 10 =
  5. 5.127.1 ÷ 1000 =
  6. 6.17.5 × 1000 =
  7. 7.10.59 ÷ 10 =
  8. 8.29.75 ÷ 10 =
  9. 9.396.5 ÷ 100 =
  10. 10.42.96 × 100 =
  11. 11.144.2 × 10 =
  12. 12.86.6 ÷ 10 =
  13. 13.44.41 × 100 =
  14. 14.47.07 ÷ 10 =
  15. 15.395.7 × 100 =
  16. 16.202.1 ÷ 100 =
  17. 17.460.1 × 100 =
  18. 18.413.7 ÷ 10 =
  19. 19.33.33 ÷ 100 =
  20. 20.49.99 × 1000 =
  21. 21.27.88 ÷ 100 =
  22. 22.490.3 ÷ 1000 =
  23. 23.0.26 × 10 =
  24. 24.290.9 ÷ 100 =
  25. 25.37.67 × 10 =
  26. 26.14.01 ÷ 100 =
  27. 27.7.41 × 10 =
  28. 28.230.3 × 10 =
  29. 29.94.1 × 1000 =
  30. 30.153.7 × 10 =
  31. 31.4.3 × 10 =
  32. 32.15.87 × 100 =
  33. 33.359.2 ÷ 1000 =
  34. 34.10.87 × 10 =
  35. 35.117.5 × 100 =
  36. 36.335.7 × 100 =
  37. 37.171.5 × 10 =
  38. 38.13.76 × 10 =
  39. 39.38.35 ÷ 1000 =
  40. 40.29.84 × 1000 =

Answer key

  1. 0.01597
  2. 14180
  3. 2628
  4. 3266
  5. 0.1271
  6. 17500
  7. 1.059
  8. 2.975
  9. 3.965
  10. 4296
  11. 1442
  12. 8.66
  13. 4441
  14. 4.707
  15. 39570
  16. 2.021
  17. 46010
  18. 41.37
  19. 0.3333
  20. 49990
  21. 0.2788
  22. 0.4903
  23. 2.6
  24. 2.909
  25. 376.7
  26. 0.1401
  27. 74.1
  28. 2303
  29. 94100
  30. 1537
  31. 43
  32. 1587
  33. 0.3592
  34. 108.7
  35. 11750
  36. 33570
  37. 1715
  38. 137.6
  39. 0.03835
  40. 29840

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