Basic Math Examples

$89 \cdot 75$

Step 1

Multiply $5$ by $9$ . Place the ones digit $(5)$ in the result line and carry the tens digit $(4)$ . There is one result line for each digit in $75$ .

	$4$
	$8$	$9$
$⨯$	$7$	$5$
		$5$

Step 2

Multiply $5$ by $8$ and add the carried $4$ . Place the ones digit $(4)$ in the result line and carry the tens digit $(4)$ . There is one result line for each digit in the $75$ .


	$8$	$9$
$⨯$	$7$	$5$
$4$	$4$	$5$

Step 3

Multiply $7$ by $9$ . Place the ones digit $(3)$ in the result line and carry the tens digit $(6)$ . There is one result line for each digit in $75$ .

	$6$
	$8$	$9$
$⨯$	$7$	$5$
$4$	$4$	$5$
	$3$

Step 4

Multiply $7$ by $8$ and add the carried $6$ . Place the ones digit $(2)$ in the result line and carry the tens digit $(6)$ . There is one result line for each digit in the $75$ .


		$8$	$9$
	$⨯$	$7$	$5$
	$4$	$4$	$5$
$6$	$2$	$3$

Step 5

Add the numbers in each column. In this case, add $5 + 0$ , then place the $5$ in the result line.


		$8$	$9$
	$⨯$	$7$	$5$
	$4$	$4$	$5$
$6$	$2$	$3$
			$5$

Step 6

Add the numbers in each column. In this case, add $4 + 3$ , then place the $7$ in the result line.


		$8$	$9$
	$⨯$	$7$	$5$
	$4$	$4$	$5$
$6$	$2$	$3$
		$7$	$5$

Step 7

Add the numbers in each column. In this case, add $4 + 2$ , then place the $6$ in the result line.


		$8$	$9$
	$⨯$	$7$	$5$
	$4$	$4$	$5$
$6$	$2$	$3$
	$6$	$7$	$5$

Step 8

Add the numbers in each column. In this case, add $0 + 6$ , then place the $6$ in the result line.


		$8$	$9$
	$⨯$	$7$	$5$
	$4$	$4$	$5$
$6$	$2$	$3$
$6$	$6$	$7$	$5$

Step 9

The result of $89 \cdot 75$ is $6675$ .

$6675$