Question

Evaluate each expression using the order of operations:

17 - 5.4 + 2
40 - 32 + 8 + 5 * 2
35 - 14 / 2 + 8 * 2
(4 - 7) * (-6.7) + 20
2 * [18 - (5 + 3 * 2) + 7]
[(-5 + 1) + 2] - 1 - 7 * 1
A. 1. 13.6, 2. 55, 3. 38, 4. 41.8, 5. 24, 6. -11
B. 1. 13.6, 2. 42, 3. 43, 4. -41.8, 5. 24, 6. -11
C. 1. 14.6, 2. 42, 3. 47, 4. -41.8, 5. 24, 6. -11
D. 1. 12.6, 2. 45, 3. 36, 4. 45.2, 5. 20, 6. -10

Answer 1

To evaluate the expressions, use the order of operations and follow the steps provided. The answers are: 1. 13.6, 2. 55, 3. 38, 4. 41.8, 5. 24, 6. -11.

Step-by-step explanation:

To evaluate the given expressions using the order of operations, we need to follow the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right)). Here are the step-by-step evaluations:

1. 17 - 5.4 + 2 = 13.6
2. 40 - 32 + 8 + 5 * 2 = 55
3. 35 - 14 / 2 + 8 * 2 = 38
4. (4 - 7) * (-6.7) + 20 = 41.8
5. 2 * [18 - (5 + 3 * 2) + 7] [(-5 + 1) + 2] - 1 - 7 * 1 = 24
6. Answer: 1. 13.6, 2. 55, 3. 38, 4. 41.8, 5. 24, 6. -11