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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 49 · 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. 1.414.1 ÷ 100 =
  2. 2.43.02 ÷ 10 =
  3. 3.338.6 × 1000 =
  4. 4.405.6 × 100 =
  5. 5.108.7 ÷ 1000 =
  6. 6.326.4 × 100 =
  7. 7.44.46 × 100 =
  8. 8.315.3 ÷ 100 =
  9. 9.11.9 × 100 =
  10. 10.210.7 ÷ 10 =
  11. 11.404.4 ÷ 100 =
  12. 12.239.1 × 10 =
  13. 13.117.1 × 10 =
  14. 14.322.6 × 10 =
  15. 15.388.3 × 100 =
  16. 16.3.49 × 10 =
  17. 17.324.5 × 10 =
  18. 18.46.11 × 10 =
  19. 19.490.5 × 10 =
  20. 20.22.82 ÷ 10 =
  21. 21.37.19 × 10 =
  22. 22.163.1 ÷ 1000 =
  23. 23.36.71 ÷ 10 =
  24. 24.37.9 × 1000 =
  25. 25.5.76 ÷ 100 =
  26. 26.461.4 ÷ 100 =
  27. 27.483.3 × 100 =
  28. 28.369.9 ÷ 100 =
  29. 29.29.96 ÷ 10 =
  30. 30.6.18 × 100 =
  31. 31.434.1 × 10 =
  32. 32.219.1 ÷ 100 =
  33. 33.45.58 ÷ 10 =
  34. 34.44.03 ÷ 1000 =
  35. 35.47.71 × 1000 =
  36. 36.35.61 ÷ 100 =
  37. 37.107.9 ÷ 1000 =
  38. 38.359.2 ÷ 100 =
  39. 39.247.4 ÷ 100 =
  40. 40.4.75 ÷ 100 =

Answer key

  1. 4.141
  2. 4.302
  3. 338600
  4. 40560
  5. 0.1087
  6. 32640
  7. 4446
  8. 3.153
  9. 1190
  10. 21.07
  11. 4.044
  12. 2391
  13. 1171
  14. 3226
  15. 38830
  16. 34.9
  17. 3245
  18. 461.1
  19. 4905
  20. 2.282
  21. 371.9
  22. 0.1631
  23. 3.671
  24. 37900
  25. 0.0576
  26. 4.614
  27. 48330
  28. 3.699
  29. 2.996
  30. 618
  31. 4341
  32. 2.191
  33. 4.558
  34. 0.04403
  35. 47710
  36. 0.3561
  37. 0.1079
  38. 3.592
  39. 2.474
  40. 0.0475

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