IXL | Evaluate numerical expressions involving exponents | 7th grade math

or

Evaluate the expression.

3

+

3

2

ref_doc_title.

or

Learn with an example

question

Evaluate the expression.

3

–

5

2

key idea

To evaluate an expression with multiple operations, you can follow the order of

operations:

Perform operations inside parentheses.
Evaluate exponents.
Multiply and divide from left to right.
Add and subtract from left to right.

solution

First, identify the operations in the expression.

3

–

5

2

This expression has an exponent. It also has subtraction. The order of operations says to evaluate the exponent before subtracting.

3

–

5

2

=

3

–

25

Now, subtract.

3

–

25

=

–

22

The value of the expression is

–

22

.

Looking for more? Try these:

Lesson: Order of operations

Lesson: Exponents

Lesson: Adding and subtracting integers

Lesson: Multiplying and dividing integers

or

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Teacher tools

Work it out

Not feeling ready yet? These can help:

B.25Evaluate numerical expressions involving integers

Lesson: Order of operations

Lesson: Exponents

Lesson: Adding and subtracting integers

Lesson: Multiplying and dividing integers