Question

A red thread is $570$ cm long. $266$ cm of thread is used for stitching garments.What is the length of the remaining thread?

Answer 1

To find the length of the remaining thread, we subtract $266$ cm from $570$ cm.
We use the vertical method to subtract $266$ cm from $570$ cm.


$\bullet$ Subtract the number at the ones place.
$\to$ Here, we have to subtract $6$ from $0$, but $6$ is greater than $0$.
$\to$ We regroup $7$ tens and $0$ ones to $6$ tens and $10$ ones.
$\to$ $10-6=4$

$\to$ Subtract the number at the tens place.
$\to$ $6-6=0$

$\bullet$ Subtract the number at the hundreds place.
$\to$ $5-2=3$
$\bullet$ $304$ cm of thread is remaining.

Option B is the correct answer.