Use the number line, to help you find the value of $24+239$24+239.
$24+239$24+239 $=$= $\editable{}$
Find the value of $333+451$333+451.
Find the value of $9664-433$9664−433.
Find the value of $2214+575$2214+575.
Fluently add and subtract multi-digit whole numbers using the standard algorithm.