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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 891 · 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. 1.300.2 ÷ 1000 =
  2. 2.434.4 × 10 =
  3. 3.115.8 × 100 =
  4. 4.344.4 × 10 =
  5. 5.13.09 ÷ 100 =
  6. 6.42.96 ÷ 100 =
  7. 7.101.9 × 10 =
  8. 8.43.68 ÷ 10 =
  9. 9.22.79 ÷ 10 =
  10. 10.43.21 × 10 =
  11. 11.289.2 × 1000 =
  12. 12.44.28 × 100 =
  13. 13.453.5 ÷ 1000 =
  14. 14.487.1 ÷ 100 =
  15. 15.313.3 ÷ 10 =
  16. 16.23.88 × 10 =
  17. 17.27.6 × 10 =
  18. 18.5.61 ÷ 1000 =
  19. 19.3.12 × 10 =
  20. 20.468.7 ÷ 100 =
  21. 21.20.89 × 1000 =
  22. 22.334.5 × 10 =
  23. 23.308.3 × 100 =
  24. 24.370.9 ÷ 10 =
  25. 25.3.76 ÷ 1000 =
  26. 26.12.64 × 10 =
  27. 27.487.6 ÷ 10 =
  28. 28.5.29 ÷ 100 =
  29. 29.0.51 ÷ 100 =
  30. 30.187.1 × 1000 =
  31. 31.111.1 ÷ 1000 =
  32. 32.5.98 ÷ 10 =
  33. 33.46.74 ÷ 10 =
  34. 34.321.1 × 100 =
  35. 35.8.23 × 10 =
  36. 36.369.1 × 100 =
  37. 37.20.1 ÷ 100 =
  38. 38.19.52 ÷ 10 =
  39. 39.30.61 × 100 =
  40. 40.477.6 × 10 =

Answer key

  1. 0.3002
  2. 4344
  3. 11580
  4. 3444
  5. 0.1309
  6. 0.4296
  7. 1019
  8. 4.368
  9. 2.279
  10. 432.1
  11. 289200
  12. 4428
  13. 0.4535
  14. 4.871
  15. 31.33
  16. 238.8
  17. 276
  18. 0.00561
  19. 31.2
  20. 4.687
  21. 20890
  22. 3345
  23. 30830
  24. 37.09
  25. 0.00376
  26. 126.4
  27. 48.76
  28. 0.0529
  29. 0.0051
  30. 187100
  31. 0.1111
  32. 0.598
  33. 4.674
  34. 32110
  35. 82.3
  36. 36910
  37. 0.201
  38. 1.952
  39. 3061
  40. 4776

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