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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 887 · 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. 1.44.62 ÷ 1000 =
  2. 2.24.74 × 10 =
  3. 3.302.1 × 100 =
  4. 4.39.71 ÷ 1000 =
  5. 5.33.63 × 1000 =
  6. 6.14.14 × 10 =
  7. 7.48.29 ÷ 100 =
  8. 8.45.9 ÷ 10 =
  9. 9.236.9 ÷ 100 =
  10. 10.9.2 × 10 =
  11. 11.64.1 × 10 =
  12. 12.107.1 ÷ 100 =
  13. 13.10.37 ÷ 1000 =
  14. 14.25.31 × 100 =
  15. 15.74.8 × 10 =
  16. 16.135.6 × 1000 =
  17. 17.39.81 × 10 =
  18. 18.258.3 × 10 =
  19. 19.7.39 ÷ 10 =
  20. 20.100.7 × 10 =
  21. 21.253.7 × 100 =
  22. 22.88.2 × 10 =
  23. 23.101.7 ÷ 10 =
  24. 24.41.16 ÷ 10 =
  25. 25.188.8 × 1000 =
  26. 26.5.19 ÷ 1000 =
  27. 27.204.9 ÷ 1000 =
  28. 28.469.5 × 10 =
  29. 29.7.4 ÷ 100 =
  30. 30.399.1 ÷ 100 =
  31. 31.46.34 ÷ 1000 =
  32. 32.33.77 × 10 =
  33. 33.287.8 ÷ 100 =
  34. 34.38.81 × 1000 =
  35. 35.130.1 ÷ 10 =
  36. 36.99.6 ÷ 10 =
  37. 37.426.1 × 10 =
  38. 38.7.55 ÷ 10 =
  39. 39.471.3 ÷ 10 =
  40. 40.32.83 ÷ 1000 =

Answer key

  1. 0.04462
  2. 247.4
  3. 30210
  4. 0.03971
  5. 33630
  6. 141.4
  7. 0.4829
  8. 4.59
  9. 2.369
  10. 92
  11. 641
  12. 1.071
  13. 0.01037
  14. 2531
  15. 748
  16. 135600
  17. 398.1
  18. 2583
  19. 0.739
  20. 1007
  21. 25370
  22. 882
  23. 10.17
  24. 4.116
  25. 188800
  26. 0.00519
  27. 0.2049
  28. 4695
  29. 0.074
  30. 3.991
  31. 0.04634
  32. 337.7
  33. 2.878
  34. 38810
  35. 13.01
  36. 9.96
  37. 4261
  38. 0.755
  39. 47.13
  40. 0.03283

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