Test of Essential Academic Skills (TEAS) ATI Mathematics Practice Test

To simplify the expression 7 + 16 - (5 + 6 x 3) - 10 x 2, follow the order of operations, often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).

1. Start with the expression inside the parentheses: 5 + 6 x 3. According to the order of operations, multiplication is performed before addition. So, calculate 6 x 3 first:

- 6 x 3 = 18

Now, substitute back into the expression:

- 5 + 18 = 23

Now, replace the original parentheses:

- The expression is now 7 + 16 - 23 - 10 x 2.

2. Next, handle the multiplication in the expression -10 x 2:

- 10 x 2 = 20

Substitute this back into the expression:

- The expression simplifies to 7 + 16 - 23 - 20.

3. Now, perform the addition and subtraction from left to right:

- Start with 7 + 16, which equals