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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 174 · 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. 1.215.6 × 1000 =
  2. 2.118.2 ÷ 10 =
  3. 3.42.36 × 100 =
  4. 4.7.71 ÷ 100 =
  5. 5.6.74 ÷ 1000 =
  6. 6.361.2 ÷ 10 =
  7. 7.36.68 ÷ 10 =
  8. 8.492.2 × 100 =
  9. 9.389.2 ÷ 1000 =
  10. 10.109.9 × 1000 =
  11. 11.323.1 ÷ 10 =
  12. 12.5.6 × 1000 =
  13. 13.179.9 × 10 =
  14. 14.36.01 ÷ 1000 =
  15. 15.309.3 × 1000 =
  16. 16.5.97 × 10 =
  17. 17.44.48 ÷ 100 =
  18. 18.38.04 × 100 =
  19. 19.58.2 × 10 =
  20. 20.49.38 ÷ 100 =
  21. 21.25.15 ÷ 1000 =
  22. 22.101.3 × 1000 =
  23. 23.177.2 ÷ 1000 =
  24. 24.66.5 × 10 =
  25. 25.330.3 ÷ 10 =
  26. 26.476.5 × 10 =
  27. 27.3.33 × 10 =
  28. 28.32.05 ÷ 10 =
  29. 29.241.3 × 10 =
  30. 30.18.85 × 1000 =
  31. 31.10.94 × 1000 =
  32. 32.206.3 ÷ 100 =
  33. 33.350.6 × 100 =
  34. 34.178.1 × 1000 =
  35. 35.167.8 ÷ 100 =
  36. 36.410.9 × 100 =
  37. 37.401.3 × 10 =
  38. 38.10.43 × 1000 =
  39. 39.36.85 ÷ 10 =
  40. 40.278.4 ÷ 1000 =

Answer key

  1. 215600
  2. 11.82
  3. 4236
  4. 0.0771
  5. 0.00674
  6. 36.12
  7. 3.668
  8. 49220
  9. 0.3892
  10. 109900
  11. 32.31
  12. 5600
  13. 1799
  14. 0.03601
  15. 309300
  16. 59.7
  17. 0.4448
  18. 3804
  19. 582
  20. 0.4938
  21. 0.02515
  22. 101300
  23. 0.1772
  24. 665
  25. 33.03
  26. 4765
  27. 33.3
  28. 3.205
  29. 2413
  30. 18850
  31. 10940
  32. 2.063
  33. 35060
  34. 178100
  35. 1.678
  36. 41090
  37. 4013
  38. 10430
  39. 3.685
  40. 0.2784

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