Basic Math Examples

13 \cdot 18

$13 \cdot 18$

Step 1

Multiply using long multiplication.

Tap for more steps...

Step 1.1

Multiply

8

$8$ by

3

$3$ . Place the ones digit

(4)

$(4)$ in the result line and carry the tens digit

(2)

$(2)$ . There is one result line for each digit in

18

$18$ .

	$2$ $2$
	$1$ $1$	$3$ $3$
$⨯$ $⨯$	$1$ $1$	$8$ $8$
		$4$ $4$

Step 1.2

Multiply

8

$8$ by

1

$1$ and add the carried

2

$2$ . Place the ones digit

(0)

$(0)$ in the result line and carry the tens digit

(1)

$(1)$ . There is one result line for each digit in the

18

$18$ .


	$1$ $1$	$3$ $3$
$⨯$ $⨯$	$1$ $1$	$8$ $8$
$1$ $1$	$0$ $0$	$4$ $4$

Step 1.3

Multiply

1

$1$ by

3

$3$ . Place the result in the next column in the result line. There is one result line for each digit in

18

$18$ .


	$1$ $1$	$3$ $3$
$⨯$ $⨯$	$1$ $1$	$8$ $8$
$1$ $1$	$0$ $0$	$4$ $4$
	$3$ $3$

Step 1.4

Multiply

1

$1$ by

1

$1$ . Place the result in the next column in the result line. There is one result line for each digit in

18

$18$ .


	$1$ $1$	$3$ $3$
$⨯$ $⨯$	$1$ $1$	$8$ $8$
$1$ $1$	$0$ $0$	$4$ $4$
$1$ $1$	$3$ $3$

Step 1.5

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

4 + 0

$4 + 0$ , then place the

4

$4$ in the result line.


	$1$ $1$	$3$ $3$
$⨯$ $⨯$	$1$ $1$	$8$ $8$
$1$ $1$	$0$ $0$	$4$ $4$
$1$ $1$	$3$ $3$
		$4$ $4$

Step 1.6

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

0 + 3

$0 + 3$ , then place the

3

$3$ in the result line.


	$1$ $1$	$3$ $3$
$⨯$ $⨯$	$1$ $1$	$8$ $8$
$1$ $1$	$0$ $0$	$4$ $4$
$1$ $1$	$3$ $3$
	$3$ $3$	$4$ $4$

Step 1.7

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

1 + 1

$1 + 1$ , then place the

2

$2$ in the result line.


	$1$ $1$	$3$ $3$
$⨯$ $⨯$	$1$ $1$	$8$ $8$
$1$ $1$	$0$ $0$	$4$ $4$
$1$ $1$	$3$ $3$
$2$ $2$	$3$ $3$	$4$ $4$


	$1$ $1$	$3$ $3$
$⨯$ $⨯$	$1$ $1$	$8$ $8$
$1$ $1$	$0$ $0$	$4$ $4$
$1$ $1$	$3$ $3$
$2$ $2$	$3$ $3$	$4$ $4$

Step 2

The result of

13 \cdot 18

$13 \cdot 18$ is

234

$234$ .

234

$234$