Evaluate 16+-4

$16 + - 4$

Replace all occurrences of $+$ $-$ with a single $-$ . A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because $1 \cdot - 1 = - 1$

$16 - 4$

Subtract using long subtraction.

Set up the subtraction problem in long subtraction format.


	$1$	$6$
$-$		$4$

Subtract $4$ from $6$ .


	$1$	$6$
$-$		$4$
		$2$

Subtract $0$ from $1$ .


	$1$	$6$
$-$		$4$
	$1$	$2$


	$1$	$6$
$-$		$4$
	$1$	$2$

The result of $16 - 4$ is $12$ .

$12$

Evaluate 16+-4

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