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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 131 · 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. 1.27.63 × 10 =
  2. 2.49.78 × 100 =
  3. 3.49.34 ÷ 10 =
  4. 4.367.5 × 100 =
  5. 5.37.16 ÷ 1000 =
  6. 6.12.03 ÷ 1000 =
  7. 7.113.1 ÷ 10 =
  8. 8.178.5 ÷ 100 =
  9. 9.310.1 ÷ 10 =
  10. 10.36.21 × 10 =
  11. 11.38.79 ÷ 100 =
  12. 12.18.44 × 10 =
  13. 13.199.2 ÷ 1000 =
  14. 14.13.53 ÷ 10 =
  15. 15.25.17 ÷ 10 =
  16. 16.385.7 × 10 =
  17. 17.14.31 ÷ 10 =
  18. 18.29.63 × 1000 =
  19. 19.49.51 × 100 =
  20. 20.364.4 ÷ 1000 =
  21. 21.48.41 ÷ 10 =
  22. 22.137.1 × 10 =
  23. 23.17.32 ÷ 100 =
  24. 24.38.74 × 1000 =
  25. 25.80.7 ÷ 1000 =
  26. 26.405.6 ÷ 1000 =
  27. 27.139.1 ÷ 100 =
  28. 28.40.84 × 1000 =
  29. 29.10.77 ÷ 10 =
  30. 30.279.2 × 10 =
  31. 31.42.28 ÷ 1000 =
  32. 32.36.11 × 10 =
  33. 33.38.74 × 1000 =
  34. 34.327.8 ÷ 10 =
  35. 35.43.29 × 100 =
  36. 36.3.77 × 1000 =
  37. 37.201.6 ÷ 10 =
  38. 38.2.83 × 10 =
  39. 39.8.44 × 100 =
  40. 40.24.59 × 1000 =

Answer key

  1. 276.3
  2. 4978
  3. 4.934
  4. 36750
  5. 0.03716
  6. 0.01203
  7. 11.31
  8. 1.785
  9. 31.01
  10. 362.1
  11. 0.3879
  12. 184.4
  13. 0.1992
  14. 1.353
  15. 2.517
  16. 3857
  17. 1.431
  18. 29630
  19. 4951
  20. 0.3644
  21. 4.841
  22. 1371
  23. 0.1732
  24. 38740
  25. 0.0807
  26. 0.4056
  27. 1.391
  28. 40840
  29. 1.077
  30. 2792
  31. 0.04228
  32. 361.1
  33. 38740
  34. 32.78
  35. 4329
  36. 3770
  37. 20.16
  38. 28.3
  39. 844
  40. 24590

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