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Denary to Binary: Subtraction

As you become more comfortable with the values of each binary column you can use the subtraction method.

  1. 141 contains one 128 leaving 13
  2. 13 contains no 64s
  3. 13 contains no 32s
  4. 13 contains no 16s
  5. 13 contains one 8 leaving 5
  6. 5 contains one 4 leaving 1
  7. 1 contains no 2s
  8. 1 contains one 1 leaving 0

We can then write this down as before as 100011012.

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