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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 913 · 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. 1.43.75 × 1000 =
  2. 2.270.4 × 10 =
  3. 3.8.5 × 100 =
  4. 4.44.85 ÷ 10 =
  5. 5.11.57 ÷ 100 =
  6. 6.271.1 × 1000 =
  7. 7.3.82 ÷ 1000 =
  8. 8.384.7 × 1000 =
  9. 9.39.22 × 10 =
  10. 10.26.15 × 1000 =
  11. 11.42.92 × 10 =
  12. 12.39.99 × 1000 =
  13. 13.21.61 ÷ 10 =
  14. 14.302.2 ÷ 100 =
  15. 15.281.8 ÷ 10 =
  16. 16.25.29 × 10 =
  17. 17.15.79 × 10 =
  18. 18.403.6 × 10 =
  19. 19.296.1 ÷ 10 =
  20. 20.14.71 × 100 =
  21. 21.187.5 × 1000 =
  22. 22.461.1 ÷ 10 =
  23. 23.320.6 ÷ 10 =
  24. 24.20.56 × 100 =
  25. 25.28.71 × 10 =
  26. 26.173.2 × 10 =
  27. 27.336.8 ÷ 1000 =
  28. 28.5.82 × 1000 =
  29. 29.48.23 × 10 =
  30. 30.74.4 × 10 =
  31. 31.26.1 × 10 =
  32. 32.164.3 ÷ 1000 =
  33. 33.2.18 × 10 =
  34. 34.36.99 × 100 =
  35. 35.47.08 × 100 =
  36. 36.258.7 × 1000 =
  37. 37.445.3 ÷ 1000 =
  38. 38.271.1 × 1000 =
  39. 39.302.9 × 1000 =
  40. 40.69.4 × 10 =

Answer key

  1. 43750
  2. 2704
  3. 850
  4. 4.485
  5. 0.1157
  6. 271100
  7. 0.00382
  8. 384700
  9. 392.2
  10. 26150
  11. 429.2
  12. 39990
  13. 2.161
  14. 3.022
  15. 28.18
  16. 252.9
  17. 157.9
  18. 4036
  19. 29.61
  20. 1471
  21. 187500
  22. 46.11
  23. 32.06
  24. 2056
  25. 287.1
  26. 1732
  27. 0.3368
  28. 5820
  29. 482.3
  30. 744
  31. 261
  32. 0.1643
  33. 21.8
  34. 3699
  35. 4708
  36. 258700
  37. 0.4453
  38. 271100
  39. 302900
  40. 694

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