Evaluate 0.9*100

$0.9 \cdot 100$

Step 1

Multiply using long multiplication.

Multiply $0$ by $9$ . Place the result in the next column in the result line. There is one result line for each digit in $100$ .


		$0$	. $9$
$⨯$	$1$	$0$	$0$
			$0$

Multiply $0$ by $0$ . Place the result in the next column in the result line. There is one result line for each digit in $100$ .


		$0$	. $9$
$⨯$	$1$	$0$	$0$
		$0$	$0$

Multiply $0$ by $9$ . Place the result in the next column in the result line. There is one result line for each digit in $100$ .


		$0$	. $9$
$⨯$	$1$	$0$	$0$
		$0$	$0$
		$0$

Multiply $0$ by $0$ . Place the result in the next column in the result line. There is one result line for each digit in $100$ .


		$0$	. $9$
$⨯$	$1$	$0$	$0$
		$0$	$0$
	$0$	$0$

Multiply $1$ by $9$ . Place the result in the next column in the result line. There is one result line for each digit in $100$ .


		$0$	. $9$
$⨯$	$1$	$0$	$0$
		$0$	$0$
	$0$	$0$
	$9$

Multiply $1$ by $0$ . Place the result in the next column in the result line. There is one result line for each digit in $100$ .


		$0$	. $9$
$⨯$	$1$	$0$	$0$
		$0$	$0$
	$0$	$0$
$0$	$9$

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


		$0$	. $9$
$⨯$	$1$	$0$	$0$
		$0$	$0$
	$0$	$0$
$0$	$9$
			$0$

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


		$0$	. $9$
$⨯$	$1$	$0$	$0$
		$0$	$0$
	$0$	$0$
$0$	$9$
		$0$	$0$

Add the numbers in each column. In this case, add $0 + 0 + 9$ , then place the $9$ in the result line.


		$0$	. $9$
$⨯$	$1$	$0$	$0$
		$0$	$0$
	$0$	$0$
$0$	$9$
	$9$	$0$	$0$


		$0$	. $9$
$⨯$	$1$	$0$	$0$
		$0$	$0$
	$0$	$0$
$0$	$9$
	$9$	$0$	$0$

Step 2

To find the number of decimal places needed in the answer, add the number of decimal places in the multiplier and multiplicand. In this case, there is a total of $1$ , so the answer must have $1$ decimal places as well.

$90$

Evaluate 0.9*100

Related Questions