Expressions Review

Which two of the following numbers have the same value?

• 2³ and 3²

• 4³ and 8²

• 3³ and 4²

• 4² and 5²

Substitute w=45 into 2(w-7) and find the value.

• 38

• 76

• 52

• 83

A letter that represents a number is called a _____.

• variable
• coefficient
• constant
• term

The number before a variable is the _____.

• term
• constant
• coefficient
• variable

A number with no variable attached is called a  _____.

• coefficient
• constant
• variable
• term

What do you call each part of an expression that is separated by a + or a -?

• coefficient
• constant
• variable
• term

Evaluate the expression.        Let    a = 4
5a + 7a - 8

• 48
• 28
• 40
• 35

(3 + 4)² - 32 

• 7
• 112
• 17
• -7

True or false:
Addition ALWAYS comes before subtraction.

• True
• False

What would you solve first?
3 x 48 ÷ (15 - 3)

• 3 x 48
• 48 / 15
• 15 - 3 
• 48-12