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
First, we need to do the multiplication (3 times 16) and (2 times 21), starting from left to right:
2 + 48 - 42 - 3
Next, we subtract 42 from 48:
2 + 6 - 3
Finally, we add 2 and 6:
8
Therefore, the answer is B. 14.
use pemdas
Using PEMDAS, we need to perform the operations in the following order:
1. Parentheses (not applicable in this expression)
2. Exponents (not applicable in this expression)
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)
2 + (3 × 16) - (2 × 21) - 3
= 2 + 48 - 42 - 3
= 50 - 45
= 5
Therefore, using PEMDAS, the value of the expression is A. 5.
To find the value of the expression using the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division - from left to right, Addition and Subtraction - from left to right), follow these steps:
Step 1: Multiply.
First, you multiply 3 by 16, which gives you 48.
Step 2: Subtract.
Next, you subtract 2 multiplied by 21 from 48. This gives you 48 - 42 = 6.
Step 3: Add.
Finally, you add 2 to 6. This gives you 8.
Therefore, the value of the expression is 8.
So, the correct answer is:
B. 8