Use the order of operations to find the value of the expression.
2 + 3 × 16 − 2 × 21 − 3
A. 5
B. 14
C. 35
D. 44
D. 44
Using the order of operations (PEMDAS), we first perform any multiplication or division, then addition or subtraction from left to right.
2 + 3 × 16 − 2 × 21 − 3
= 2 + 48 - 42 - 3 (multiplying before adding/subtracting)
= 47 - 42
= 5
Therefore, the answer is A. 5.
To find the value of the expression using the order of operations, you need to follow the acronym PEMDAS, which stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).
Given expression: 2 + 3 × 16 − 2 × 21 − 3
First, solve the multiplication:
2 + 48 − 42 − 3
Next, perform the addition and subtraction in order:
2 + 48 = 50
50 - 42 = 8
8 - 3 = 5
Therefore, the value of the expression is 5.
The correct answer is A.