Question

Tell how the Commutative and Associative Properties of Addition can help you evaluate the expression using mental math. -2 + (-47 - 8)

Answer 1

Answer:

-57

Step-by-step explanation:

For mental math, we need to find additions that make 10s like 8 + 2 = 10.

-2 + (-47 - 8)

= -2 - 47 - 8

= -2 - 8 - 47

= (-2 - 8) - 47

= -10 - 47

= -57

Answer 2

Answer:

-57

Step-by-step explanation: