Respuesta :

They both use the addition property , they are also both commutative property of addition !

Answer:

Commutative property of addition.

Step-by-step explanation:

Given  : 6+7=7+6

To find : Underline the addition property .

Solution : We have given 6+7=7+6

Commutative property of addition : a + b = b +a

Example: 2 +3 = 3+2 = 5.

We can say 6+7=7+6 follow the Commutative property of addition.

Therefore, Commutative property of addition.