Pre-Algebra Examples

$234.89 + 234.56$

Step 1

Set up the addition in long addition format, placing the larger number on top of the smaller number. Align the decimal points in each addend.


	$2$	$3$	$4$	.	$8$	$9$
$+$	$2$	$3$	$4$	.	$5$	$6$
				.

Step 2

Add the numbers together from the far right column. Since the result is greater than $10$ , carry the tens digit to the next column.

					$1$
	$2$	$3$	$4$	.	$8$	$9$
$+$	$2$	$3$	$4$	.	$5$	$6$
				.		$5$

Step 3

Add the numbers together from the next column to the left, including the carry digit. Since the result is greater than $10$ , carry the tens digit to the next column.

			$1$		$1$
	$2$	$3$	$4$	.	$8$	$9$
$+$	$2$	$3$	$4$	.	$5$	$6$
				.	$4$	$5$

Step 4

Add the numbers together from the next column to the left, including the carry digit.

			$1$		$1$
	$2$	$3$	$4$	.	$8$	$9$
$+$	$2$	$3$	$4$	.	$5$	$6$
			$9$	.	$4$	$5$

Step 5

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

			$1$		$1$
	$2$	$3$	$4$	.	$8$	$9$
$+$	$2$	$3$	$4$	.	$5$	$6$
		$6$	$9$	.	$4$	$5$

Step 6

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

			$1$		$1$
	$2$	$3$	$4$	.	$8$	$9$
$+$	$2$	$3$	$4$	.	$5$	$6$
	$4$	$6$	$9$	.	$4$	$5$

Step 7

The sum of $234.89$ and $234.56$ is $469.45$ .

$469.45$