Make Math Moments Academy › Forums › MiniCourse Reflections › The Fundamentals of Mathematics › 21 – Addition – Discussion › Reply To: 21 – Addition – Discussion

For both addition and multiplication, the idea of moving quantities around is the commutative property.
Typically, we use the commutative property to help us reassociate quantities with other quantities to make simplification easier.
For example, when people see this expression:
7 + 9 + 3
The order of operations would suggest that 7 and 9 are “associated” and will be simplified through addition first. However, we might use the commutative property to reassociate the 7 with the 3 to make a 10:
7 + 3 + 9 = 10 + 9
10 + 9 = 19
The same is true with negative quantities as well ðŸ™‚