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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 102 · 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. 1.26.12 ÷ 100 =
  2. 2.3.21 × 10 =
  3. 3.175.6 × 100 =
  4. 4.39.12 × 1000 =
  5. 5.70.9 × 100 =
  6. 6.281.6 × 10 =
  7. 7.425.3 × 10 =
  8. 8.274.5 ÷ 10 =
  9. 9.21.86 × 10 =
  10. 10.48.71 ÷ 10 =
  11. 11.37.47 × 100 =
  12. 12.34.92 × 1000 =
  13. 13.32.72 × 1000 =
  14. 14.176.7 ÷ 100 =
  15. 15.241.6 ÷ 1000 =
  16. 16.39.18 × 10 =
  17. 17.23.41 × 10 =
  18. 18.168.7 ÷ 100 =
  19. 19.44.73 ÷ 10 =
  20. 20.243.1 × 1000 =
  21. 21.170.7 × 1000 =
  22. 22.29.6 × 10 =
  23. 23.469.9 × 100 =
  24. 24.52.4 ÷ 100 =
  25. 25.1.54 × 100 =
  26. 26.275.6 ÷ 100 =
  27. 27.396.1 × 1000 =
  28. 28.168.4 × 10 =
  29. 29.35.28 × 100 =
  30. 30.36.99 ÷ 10 =
  31. 31.24.94 × 1000 =
  32. 32.417.1 ÷ 10 =
  33. 33.351.1 ÷ 100 =
  34. 34.194.1 ÷ 1000 =
  35. 35.26.2 ÷ 10 =
  36. 36.16.43 × 10 =
  37. 37.404.9 ÷ 100 =
  38. 38.62.9 × 10 =
  39. 39.43.83 × 1000 =
  40. 40.43.7 × 1000 =

Answer key

  1. 0.2612
  2. 32.1
  3. 17560
  4. 39120
  5. 7090
  6. 2816
  7. 4253
  8. 27.45
  9. 218.6
  10. 4.871
  11. 3747
  12. 34920
  13. 32720
  14. 1.767
  15. 0.2416
  16. 391.8
  17. 234.1
  18. 1.687
  19. 4.473
  20. 243100
  21. 170700
  22. 296
  23. 46990
  24. 0.524
  25. 154
  26. 2.756
  27. 396100
  28. 1684
  29. 3528
  30. 3.699
  31. 24940
  32. 41.71
  33. 3.511
  34. 0.1941
  35. 2.62
  36. 164.3
  37. 4.049
  38. 629
  39. 43830
  40. 43700

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