Question

Give an example of an arithmetic problem that

can be made easy to solve mentally by using the
commutative property of addition. Write equa-
tions that show your use of the commutative prop-
erty of addition. Your use of this property must
genuinely make the problem easier to solve.

Answer 1

The commutative property of addition can be used to mentally solve arithmetic problems.

Step-by-step explanation:

An example of an arithmetic problem that can be made easier to solve mentally using the commutative property of addition is 7 + 8. Instead of adding 7 and 8, we can use the commutative property to switch the order of the numbers, making it 8 + 7. This can be mentally solved by adding 10 to 8 to get 18, and then subtracting 2 to get 16, which is the same result as 7 + 8.

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