Basic Math Examples

85 \cdot 9

$85 \cdot 9$

Step 1

Multiply using long multiplication.

Tap for more steps...

Step 1.1

Multiply

9

$9$ by

5

$5$ . Place the ones digit

(5)

$(5)$ in the result line and carry the tens digit

(4)

$(4)$ . There is one result line for each digit in

9

$9$ .

	$4$ $4$
	$8$ $8$	$5$ $5$
$⨯$ $⨯$		$9$ $9$
		$5$ $5$

Step 1.2

Multiply

9

$9$ by

8

$8$ and add the carried

4

$4$ . Place the ones digit

(6)

$(6)$ in the result line and carry the tens digit

(7)

$(7)$ . There is one result line for each digit in the

9

$9$ .


	$8$ $8$	$5$ $5$
$⨯$ $⨯$		$9$ $9$
$7$ $7$	$6$ $6$	$5$ $5$

Step 1.3

Add the numbers in each column. In this case, add

5

$5$ , then place the

5

$5$ in the result line.


	$8$ $8$	$5$ $5$
$⨯$ $⨯$		$9$ $9$
$7$ $7$	$6$ $6$	$5$ $5$
		$5$ $5$

Step 1.4

Add the numbers in each column. In this case, add

6

$6$ , then place the

6

$6$ in the result line.


	$8$ $8$	$5$ $5$
$⨯$ $⨯$		$9$ $9$
$7$ $7$	$6$ $6$	$5$ $5$
	$6$ $6$	$5$ $5$

Step 1.5

Add the numbers in each column. In this case, add

7

$7$ , then place the

7

$7$ in the result line.


	$8$ $8$	$5$ $5$
$⨯$ $⨯$		$9$ $9$
$7$ $7$	$6$ $6$	$5$ $5$
$7$ $7$	$6$ $6$	$5$ $5$


	$8$ $8$	$5$ $5$
$⨯$ $⨯$		$9$ $9$
$7$ $7$	$6$ $6$	$5$ $5$
$7$ $7$	$6$ $6$	$5$ $5$

Step 2

The result of

85 \cdot 9

$85 \cdot 9$ is

765

$765$ .

765

$765$

85 \cdot 9

$85 \cdot 9$

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