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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 600 · 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. 1.129.4 ÷ 10 =
  2. 2.472.7 × 100 =
  3. 3.21.77 × 1000 =
  4. 4.39.22 × 10 =
  5. 5.488.3 ÷ 1000 =
  6. 6.3.64 × 100 =
  7. 7.46.97 × 10 =
  8. 8.20.6 × 10 =
  9. 9.417.7 ÷ 100 =
  10. 10.293.3 × 10 =
  11. 11.410.5 × 100 =
  12. 12.10.33 × 10 =
  13. 13.42.53 × 10 =
  14. 14.11.01 ÷ 10 =
  15. 15.214.1 ÷ 10 =
  16. 16.207.8 × 1000 =
  17. 17.473.9 ÷ 100 =
  18. 18.444.1 ÷ 100 =
  19. 19.38.16 ÷ 100 =
  20. 20.420.5 ÷ 1000 =
  21. 21.0.93 × 100 =
  22. 22.4.01 ÷ 100 =
  23. 23.18.06 × 1000 =
  24. 24.55.7 ÷ 100 =
  25. 25.28.03 ÷ 100 =
  26. 26.95.3 × 100 =
  27. 27.354.1 × 10 =
  28. 28.494.1 ÷ 10 =
  29. 29.63.2 ÷ 10 =
  30. 30.476.6 × 1000 =
  31. 31.22.5 × 1000 =
  32. 32.16.48 × 100 =
  33. 33.7.62 ÷ 10 =
  34. 34.14.4 × 10 =
  35. 35.13.1 × 100 =
  36. 36.457.9 ÷ 100 =
  37. 37.136.5 × 1000 =
  38. 38.53.7 × 100 =
  39. 39.45.31 × 10 =
  40. 40.435.9 × 10 =

Answer key

  1. 12.94
  2. 47270
  3. 21770
  4. 392.2
  5. 0.4883
  6. 364
  7. 469.7
  8. 206
  9. 4.177
  10. 2933
  11. 41050
  12. 103.3
  13. 425.3
  14. 1.101
  15. 21.41
  16. 207800
  17. 4.739
  18. 4.441
  19. 0.3816
  20. 0.4205
  21. 93
  22. 0.0401
  23. 18060
  24. 0.557
  25. 0.2803
  26. 9530
  27. 3541
  28. 49.41
  29. 6.32
  30. 476600
  31. 22500
  32. 1648
  33. 0.762
  34. 144
  35. 1310
  36. 4.579
  37. 136500
  38. 5370
  39. 453.1
  40. 4359

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