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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 524 · 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. 1.476.3 × 10 =
  2. 2.379.4 × 100 =
  3. 3.10.39 ÷ 1000 =
  4. 4.377.1 × 10 =
  5. 5.32.61 × 10 =
  6. 6.45.51 ÷ 100 =
  7. 7.398.4 ÷ 10 =
  8. 8.56.1 × 1000 =
  9. 9.184.6 ÷ 1000 =
  10. 10.54.9 × 1000 =
  11. 11.1.45 × 100 =
  12. 12.26.8 × 1000 =
  13. 13.255.8 × 100 =
  14. 14.6.6 ÷ 100 =
  15. 15.45.19 ÷ 10 =
  16. 16.13.26 ÷ 100 =
  17. 17.29.97 ÷ 10 =
  18. 18.29.21 ÷ 10 =
  19. 19.8.76 × 1000 =
  20. 20.44.55 × 10 =
  21. 21.279.1 × 1000 =
  22. 22.47.49 × 1000 =
  23. 23.10.02 × 10 =
  24. 24.13.24 ÷ 1000 =
  25. 25.12.33 × 10 =
  26. 26.222.1 × 100 =
  27. 27.32.5 × 1000 =
  28. 28.27.9 ÷ 10 =
  29. 29.26.37 × 10 =
  30. 30.1.93 × 1000 =
  31. 31.4.24 ÷ 10 =
  32. 32.41.39 ÷ 10 =
  33. 33.154.5 ÷ 1000 =
  34. 34.384.9 ÷ 10 =
  35. 35.19.2 ÷ 1000 =
  36. 36.28.61 × 10 =
  37. 37.165.3 × 1000 =
  38. 38.21.98 × 100 =
  39. 39.14.89 × 100 =
  40. 40.266.5 ÷ 10 =

Answer key

  1. 4763
  2. 37940
  3. 0.01039
  4. 3771
  5. 326.1
  6. 0.4551
  7. 39.84
  8. 56100
  9. 0.1846
  10. 54900
  11. 145
  12. 26800
  13. 25580
  14. 0.066
  15. 4.519
  16. 0.1326
  17. 2.997
  18. 2.921
  19. 8760
  20. 445.5
  21. 279100
  22. 47490
  23. 100.2
  24. 0.01324
  25. 123.3
  26. 22210
  27. 32500
  28. 2.79
  29. 263.7
  30. 1930
  31. 0.424
  32. 4.139
  33. 0.1545
  34. 38.49
  35. 0.0192
  36. 286.1
  37. 165300
  38. 2198
  39. 1489
  40. 26.65

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