Properties of addition

Which equation shows the commutative property of addition?

1 + 7 = 7 + 1 This equation shows the commutative property. The order of the addends is changed.

Which equation shows the associative property of addition?

3 + (8 + 1) = (3 + 8) + 1 This equation shows the associative property. The grouping of the addends is changed.

Which equation shows the identity property of addition?

4 = 4 + 0 This equation shows the identity property. Adding zero does not change the sum.

Which equation shows the commutative property of addition? Sorry, incorrect... The correct answer is: Explanation review You answered: Example question Questions

7 + 9 = 9 + 7 This equation shows the commutative property. The order of the addends is changed.

Which property of addition is shown? k + (m + n) = (k + m) + n

k + (m + n) = (k + m) + n This equation shows the associative property. The grouping of the addends is changed.

Which equation shows the identity property of addition? Sorry, incorrect... The correct answer is: Explanation review You answered: Example question Questions

u = 0 + u This equation shows the identity property. Adding zero does not change the sum.