Evaluating Expressions and Using Order of Operations

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?

• 72

• 720

• 36

• 48

Evaluate the expression

[(12 ÷ 2) - 4] + (8 x 2)

• 20

• 17

• 16

• 18

When evaluating an expression, which operation should be considered last?

• powers

• brackets

• addition and subtraction

• multiplication and division

When evaluating an expression, following the order of operations, which

operation should be considered first?

• multiplication and division

• addition and subtraction

• powers

• parenthesis

Letters used to represent amounts

• Expressions

• Equations

• Symbols

• Variables

b² + 4
when b = 3

• 10
• 12
• 13
• 11