Posted by **Jnr John** on Tuesday, July 9, 2013 at 6:20am.

Subtract the following numbers using the standard method.

111 1110 0010 - 100 0111 - 111 =

- Number System -
**MathMate**, Tuesday, July 9, 2013 at 6:34am
Subtraction is done as in decimal, one digit at a time from the right. Borrow from the left digit if necessary.

If the result is expected to be negative, reverse the subtraction (to get a positive difference) and then change the sign.

Example:

1101

-0110

-----

0111

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