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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 542 · 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. 1.6.64 ÷ 10 =
  2. 2.35.63 × 100 =
  3. 3.43.3 × 1000 =
  4. 4.240.1 ÷ 10 =
  5. 5.386.2 ÷ 100 =
  6. 6.469.6 ÷ 1000 =
  7. 7.217.8 × 1000 =
  8. 8.193.8 × 10 =
  9. 9.34.01 × 1000 =
  10. 10.45.48 × 100 =
  11. 11.15.71 ÷ 1000 =
  12. 12.32.4 × 100 =
  13. 13.7.36 × 100 =
  14. 14.221.1 × 10 =
  15. 15.48.49 ÷ 1000 =
  16. 16.462.6 ÷ 10 =
  17. 17.400.3 × 100 =
  18. 18.32.99 ÷ 10 =
  19. 19.31.91 ÷ 100 =
  20. 20.230.7 ÷ 1000 =
  21. 21.18.31 ÷ 10 =
  22. 22.25.16 × 10 =
  23. 23.18.96 ÷ 10 =
  24. 24.1.43 × 1000 =
  25. 25.45.9 × 100 =
  26. 26.295.7 ÷ 10 =
  27. 27.42.31 ÷ 10 =
  28. 28.245.4 ÷ 10 =
  29. 29.33.1 × 100 =
  30. 30.396.1 × 10 =
  31. 31.6.96 ÷ 100 =
  32. 32.56.1 × 100 =
  33. 33.24.53 × 1000 =
  34. 34.10.16 ÷ 10 =
  35. 35.127.3 ÷ 1000 =
  36. 36.333.3 ÷ 1000 =
  37. 37.0.59 × 100 =
  38. 38.29.99 × 10 =
  39. 39.49.11 × 100 =
  40. 40.136.8 ÷ 10 =

Answer key

  1. 0.664
  2. 3563
  3. 43300
  4. 24.01
  5. 3.862
  6. 0.4696
  7. 217800
  8. 1938
  9. 34010
  10. 4548
  11. 0.01571
  12. 3240
  13. 736
  14. 2211
  15. 0.04849
  16. 46.26
  17. 40030
  18. 3.299
  19. 0.3191
  20. 0.2307
  21. 1.831
  22. 251.6
  23. 1.896
  24. 1430
  25. 4590
  26. 29.57
  27. 4.231
  28. 24.54
  29. 3310
  30. 3961
  31. 0.0696
  32. 5610
  33. 24530
  34. 1.016
  35. 0.1273
  36. 0.3333
  37. 59
  38. 299.9
  39. 4911
  40. 13.68

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