Question

13. 2 – (–8) + (–3) = A. 1 B. 12 C. 7 D. 14

Answer 1

ANSWER

C. 7

EXPLANATION

We want to evaluate

$2 - ( - 8) + ( - 3)$

We use the order of operations PEDMAS.

Dealing with the parenthesis first,we have

$2 - - 8+- 3$

Note that:

$- - = +$

and

$- + = -$

Our expression now becomes:

$2 + 8 - 3$

Next, we add to get:

$10 - 3$

We finally subtract to get,

$7$

The correct answer is C

Answer 2

Hello!

The answer is: C. 7

Why?

To solve the problem, first, we need to consider the signs out and inside of the parenthesis.

We must remember the following rule:

$--=+\\+-=-$

We are given the following expression:

$2-(-8)+(-3)$

Then, we can rewrite it using the rule of the signs, we have:

$2--8+-3=2+8-3=2+8-3$

$2+8-3=10-3=7$

Hence, the correct option is C. 7.

Have a nice day!