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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 642 · 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. 1.26.41 × 100 =
  2. 2.244.3 × 10 =
  3. 3.16.06 ÷ 10 =
  4. 4.408.1 ÷ 1000 =
  5. 5.375.6 ÷ 10 =
  6. 6.5.96 × 10 =
  7. 7.19.18 × 100 =
  8. 8.441.7 × 100 =
  9. 9.25.91 × 1000 =
  10. 10.279.9 × 10 =
  11. 11.255.2 ÷ 10 =
  12. 12.272.9 × 100 =
  13. 13.286.8 ÷ 100 =
  14. 14.498.7 × 10 =
  15. 15.47.47 × 1000 =
  16. 16.31.49 × 1000 =
  17. 17.4.27 × 1000 =
  18. 18.17.3 × 10 =
  19. 19.41.16 ÷ 100 =
  20. 20.29.88 × 10 =
  21. 21.30.84 × 10 =
  22. 22.13.44 × 10 =
  23. 23.444.2 × 10 =
  24. 24.27.64 ÷ 1000 =
  25. 25.15.97 ÷ 10 =
  26. 26.12.18 ÷ 1000 =
  27. 27.225.1 ÷ 10 =
  28. 28.271.4 × 1000 =
  29. 29.4.23 × 1000 =
  30. 30.53.7 ÷ 100 =
  31. 31.291.2 ÷ 1000 =
  32. 32.24.71 ÷ 10 =
  33. 33.459.9 × 100 =
  34. 34.285.8 × 10 =
  35. 35.465.6 ÷ 1000 =
  36. 36.338.7 × 1000 =
  37. 37.43.77 ÷ 100 =
  38. 38.54.3 × 1000 =
  39. 39.47.63 × 1000 =
  40. 40.190.3 × 100 =

Answer key

  1. 2641
  2. 2443
  3. 1.606
  4. 0.4081
  5. 37.56
  6. 59.6
  7. 1918
  8. 44170
  9. 25910
  10. 2799
  11. 25.52
  12. 27290
  13. 2.868
  14. 4987
  15. 47470
  16. 31490
  17. 4270
  18. 173
  19. 0.4116
  20. 298.8
  21. 308.4
  22. 134.4
  23. 4442
  24. 0.02764
  25. 1.597
  26. 0.01218
  27. 22.51
  28. 271400
  29. 4230
  30. 0.537
  31. 0.2912
  32. 2.471
  33. 45990
  34. 2858
  35. 0.4656
  36. 338700
  37. 0.4377
  38. 54300
  39. 47630
  40. 19030

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