Order of Operations and Evaluating Expressions Practice

Evaluate the expression for c = 3 and d = 5.

(3c² − 3d)² − 21

Use order of operations to evaluate this numerical expression.

Use order of operations to evaluate this numerical expression.

When solving expressions with series of operations, which of the following is correct?

• Add and subtract from right to left

• Multiply and divide from left to right

• Add and multiply from left to right

• Subtract and divide from right to left

In the acronym for the order of operation PEMDAS, what does E stands for?

Find and explain the error.    
 5 - 3 + 2
     5 - 5
        0

• There is no error.

• Addition was done first and you should have subtracted first

• There is a subtraction error

4(8) ÷ (8 − 6)

• -2

• 18

• -1

• 16

When evaluating an expression, following the order of operations, which operation should be considered first?

• multiplication and division

• addition and subtraction

• powers

• parenthesis

• 72

• 720

• 36

• 48

Evaluate the expression: 5a + b for a= 6 and b= 3

• 33

• 36

• 30

• 59