Use the number $8$8 plotted on the number line to help you find the value of $8+5$8+5.
$8+5$8+5$=$=$\editable{}$
Use the number $13$13 plotted on the number line to help you find the value of $13+7$13+7.
Use the number line to help you find the value of $1+56$1+56.
Use the number line to help you find the value of $47+9$47+9.