Basic Math Examples

27 \cdot 5

$27 \cdot 5$

Step 1

Multiply using long multiplication.

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Step 1.1

Multiply

5

$5$ by

7

$7$ . Place the ones digit

(5)

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

(3)

$(3)$ . There is one result line for each digit in

5

$5$ .

	$3$ $3$
	$2$ $2$	$7$ $7$
$⨯$ $⨯$		$5$ $5$
		$5$ $5$

Step 1.2

Multiply

5

$5$ by

2

$2$ and add the carried

3

$3$ . Place the ones digit

(3)

$(3)$ in the result line and carry the tens digit

(1)

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

5

$5$ .


	$2$ $2$	$7$ $7$
$⨯$ $⨯$		$5$ $5$
$1$ $1$	$3$ $3$	$5$ $5$

Step 1.3

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

5

$5$ , then place the

5

$5$ in the result line.


	$2$ $2$	$7$ $7$
$⨯$ $⨯$		$5$ $5$
$1$ $1$	$3$ $3$	$5$ $5$
		$5$ $5$

Step 1.4

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

3

$3$ , then place the

3

$3$ in the result line.


	$2$ $2$	$7$ $7$
$⨯$ $⨯$		$5$ $5$
$1$ $1$	$3$ $3$	$5$ $5$
	$3$ $3$	$5$ $5$

Step 1.5

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

1

$1$ , then place the

1

$1$ in the result line.


	$2$ $2$	$7$ $7$
$⨯$ $⨯$		$5$ $5$
$1$ $1$	$3$ $3$	$5$ $5$
$1$ $1$	$3$ $3$	$5$ $5$


	$2$ $2$	$7$ $7$
$⨯$ $⨯$		$5$ $5$
$1$ $1$	$3$ $3$	$5$ $5$
$1$ $1$	$3$ $3$	$5$ $5$

Step 2

The result of

27 \cdot 5

$27 \cdot 5$ is

135

$135$ .

135

$135$

27 \cdot 5

$27 \cdot 5$

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