Name:______________ 1, Write each missing number.
3 + 5 = + 3	5 + 4 = 4 +
4 + = 4	+ 0 = 6
(3 + 5 ) + = 3 + (5 + 1)	+ ( 2 + 6) = ( 2 + 2) + 6
2, Write 2 math equations to show the commutative property of addition. ____________________________________________________
3, Find each sum.
(3 + 5 ) + 3 =	9 + ( 4 + 2) =
2 + ( 4 + 7) =	(6 + 2 ) + 3 =
9+ 0 + 1 =	7 + 0 + 5 =
4, Which property of addition is shown by 0 + 7 = 7 ? Explain your answer. __________________________________________________ __________________________________________________