  ### Home > CCAA > Chapter 3 Unit 2 > Lesson CC2: 3.2.5 > Problem3-83

3-83.

Follow the Order of Operations (use circling the terms if it is helpful) to simplify the following expressions:

1. $-7+4\div(-2)$

If you need help with simplifying expressions, refer to earlier problems on the Order of Operations. Try working it out on your own before checking the answer.

$\enclose{circle}{-7}+\enclose{circle}{4\div\left(-2\right)}\leftarrow$

$-9$

1. $17.5\div(-7)+-8.1(2)$

Refer to part (a) if you are having trouble getting started. Remember to divide and multiply before adding or subtracting!

$-18.7$

1. $(8+(-3))(-5\frac{3}{5})$

This problem is similar to the previous two. Pay extra attention to parentheses!

Sophia thinks that the answer is $23$, because multiplication should come before addition.
Do you agree with her? Is there any reason that you might need to add first in this problem?

1. $(4-(-3))+(5\div(-5))$

This problem is similar to the previous three. Be careful to follow the Order of Operations as you calculate.