TACHS Math : Order of operations

Study concepts, example questions & explanations for TACHS Math

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Example Questions

Example Question #1 : Order Of Operations

Evaluate:

Possible Answers:

Correct answer:

Explanation:

In the order of operations, in the absence of grouping symbols, multiplication takes precedence over addition and subtraction. Multiply 15 by 8 first:

Addition and subtraction have equal precedence and are worked in left-to-right order. Subtract 120 and 12 next:

Now add:

Example Question #2 : Order Of Operations

What is the value of ?

Possible Answers:

Correct answer:

Explanation:

Make sure to follow the order of operations. 

Start by simplifying what is found in the parentheses.

Next, simplify any exponents.

Next, simplify any multiplication and division.

Finally, simplify any addition and subtraction.

Example Question #3 : Order Of Operations

What is the value of ?

Possible Answers:

Correct answer:

Explanation:

Make sure you follow the order of operations (PEMDAS: parentheses, exponents, multiplication, division, addition, and subtraction—from the left to the right).

Start by simplifying what's found within the parentheses:

Next, simplify any multiplication and division.

Finally, simplify any addition and subtraction.

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