Rewrite the expression using the stated property, then find the sum.
$4+7$ | commutative property

Find the following sums.

$5421+378$

Add.

Add.

Add.

Rewrite the expression using the stated property, then find the sum.

$(11+3)+9$ | associative property

Rewrite the expression using the stated property, then find the sum.

$13+0$ | addition property of 0

Use the properties of addition to find the sum of the expression.

$3+18+7+2+11$

Use the properties of addition to find the sum of the expression.

$293+326+4008+57$