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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 562 · 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. 1.237.1 × 10 =
  2. 2.39.12 × 10 =
  3. 3.367.1 ÷ 10 =
  4. 4.10.55 ÷ 1000 =
  5. 5.38.71 × 1000 =
  6. 6.34.33 ÷ 10 =
  7. 7.10.65 ÷ 10 =
  8. 8.327.8 × 1000 =
  9. 9.78.5 ÷ 100 =
  10. 10.133.5 × 100 =
  11. 11.36.7 ÷ 10 =
  12. 12.47.05 ÷ 10 =
  13. 13.14.66 × 100 =
  14. 14.47.87 ÷ 100 =
  15. 15.13.77 × 1000 =
  16. 16.181.1 ÷ 1000 =
  17. 17.268.7 × 1000 =
  18. 18.19.1 ÷ 1000 =
  19. 19.45.53 × 1000 =
  20. 20.319.8 ÷ 100 =
  21. 21.46.43 × 100 =
  22. 22.34.3 × 10 =
  23. 23.274.5 × 100 =
  24. 24.24.24 × 10 =
  25. 25.432.6 × 10 =
  26. 26.295.8 × 10 =
  27. 27.45.76 × 10 =
  28. 28.160.5 ÷ 1000 =
  29. 29.2.05 × 1000 =
  30. 30.319.6 × 10 =
  31. 31.361.8 ÷ 100 =
  32. 32.16.97 × 1000 =
  33. 33.30.73 × 10 =
  34. 34.202.1 × 10 =
  35. 35.284.6 ÷ 10 =
  36. 36.48.74 ÷ 10 =
  37. 37.10.29 × 10 =
  38. 38.136.1 × 1000 =
  39. 39.277.8 × 10 =
  40. 40.166.3 ÷ 10 =

Answer key

  1. 2371
  2. 391.2
  3. 36.71
  4. 0.01055
  5. 38710
  6. 3.433
  7. 1.065
  8. 327800
  9. 0.785
  10. 13350
  11. 3.67
  12. 4.705
  13. 1466
  14. 0.4787
  15. 13770
  16. 0.1811
  17. 268700
  18. 0.0191
  19. 45530
  20. 3.198
  21. 4643
  22. 343
  23. 27450
  24. 242.4
  25. 4326
  26. 2958
  27. 457.6
  28. 0.1605
  29. 2050
  30. 3196
  31. 3.618
  32. 16970
  33. 307.3
  34. 2021
  35. 28.46
  36. 4.874
  37. 102.9
  38. 136100
  39. 2778
  40. 16.63

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