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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 532 · 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. 1.19.18 ÷ 1000 =
  2. 2.33.4 ÷ 100 =
  3. 3.3.65 ÷ 1000 =
  4. 4.1.75 ÷ 100 =
  5. 5.154.2 × 100 =
  6. 6.466.8 × 10 =
  7. 7.26.62 × 10 =
  8. 8.21.2 ÷ 100 =
  9. 9.41.73 × 1000 =
  10. 10.346.3 ÷ 10 =
  11. 11.119.4 ÷ 100 =
  12. 12.464.8 ÷ 1000 =
  13. 13.48.09 × 100 =
  14. 14.345.7 × 10 =
  15. 15.443.3 × 10 =
  16. 16.322.1 × 10 =
  17. 17.6.37 × 100 =
  18. 18.64.9 × 1000 =
  19. 19.479.1 ÷ 1000 =
  20. 20.6.71 ÷ 100 =
  21. 21.472.4 × 100 =
  22. 22.6.01 ÷ 100 =
  23. 23.495.6 ÷ 1000 =
  24. 24.44.47 ÷ 10 =
  25. 25.420.3 × 1000 =
  26. 26.47.34 ÷ 1000 =
  27. 27.425.8 ÷ 1000 =
  28. 28.16.71 × 1000 =
  29. 29.274.9 × 10 =
  30. 30.302.3 ÷ 10 =
  31. 31.30.35 ÷ 100 =
  32. 32.15.07 × 10 =
  33. 33.26.1 ÷ 10 =
  34. 34.9.68 ÷ 10 =
  35. 35.355.1 ÷ 1000 =
  36. 36.88.1 × 10 =
  37. 37.102.3 × 10 =
  38. 38.75.2 × 100 =
  39. 39.86.4 ÷ 10 =
  40. 40.39.08 ÷ 1000 =

Answer key

  1. 0.01918
  2. 0.334
  3. 0.00365
  4. 0.0175
  5. 15420
  6. 4668
  7. 266.2
  8. 0.212
  9. 41730
  10. 34.63
  11. 1.194
  12. 0.4648
  13. 4809
  14. 3457
  15. 4433
  16. 3221
  17. 637
  18. 64900
  19. 0.4791
  20. 0.0671
  21. 47240
  22. 0.0601
  23. 0.4956
  24. 4.447
  25. 420300
  26. 0.04734
  27. 0.4258
  28. 16710
  29. 2749
  30. 30.23
  31. 0.3035
  32. 150.7
  33. 2.61
  34. 0.968
  35. 0.3551
  36. 881
  37. 1023
  38. 7520
  39. 8.64
  40. 0.03908

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