Evaluate 6--10

$6 - - 10$

Replace all occurrences of $-$ $-$ with a single $+$ . Two consecutive minus signs have the same mathematical meaning as a single plus sign because $- 1 \cdot - 1 = 1$

$6 + 10$

Add using long addition.

Set up the addition in long addition format, placing the larger number on top of the smaller number.


	$1$	$0$
$+$		$6$

Add the numbers together from the far right column.


	$1$	$0$
$+$		$6$
		$6$

Add the numbers together from the next column to the left.


	$1$	$0$
$+$		$6$
	$1$	$6$


	$1$	$0$
$+$		$6$
	$1$	$6$

The sum of $10$ and $6$ is $16$ .

$16$

Evaluate 6--10

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