5. Just do 9 minus 4. 5 plus 4 equals 9
Commutative
144 9+7 = 16 and 9*16 = 144
13
Commutative Property of Addition
5. Just do 9 minus 4. 5 plus 4 equals 9
Commutative
4 + 4 + 1 = 9
Commutativity.
144 9+7 = 16 and 9*16 = 144
13
The additive property.
Commutative Property of Addition
23
the answer to that is 5
-13
26