CPM/CC1 Chapter 4 Vocabulary :Variables & Ratios

math phrase that combines numbers AND variables (letters: 3b or 5x) by using (+, -, *, ÷). *does not have an equal sign (=)

• algebraic expression
• equivalent expressions
• reduce
• substitution
• ratio

to make bigger

• similar figures
• expression
• ratio
• substitution
• enlarge

two different ways to write the same expression

• equivalent expressions
• equivalent fractions
• equivalent expressions
• expression
• evaluate

fractions that equal each other, but have different denominators

• equivalent fractions
• ratio
• reduce
• expression
• evaluate

ratios that have the same value, but look different

• evaluate
• equivalent ratios
• reduce
• equivalent expressions
• ratio

math phrase that combines numbers by using +, -, *, or ÷

• ratio
• reduce
• expression
• equivalent expressions
• evaluate

to replace variables (letters) with numbers in an algebraic expression

• equivalent fractions
• ratio
• reduce
• evaluate
• substitution

a comparison of two groups; to 5 girls to 15 boys, : 5 girls : 15 boys, fraction 5 girls/15 boys

• ratio
• reduce
• evaluate
• substitution
• equivalent expressions

to make smaller. Fractions can also be reduced to lowest terms.

• substitution
• similar figures
• equivalent ratios
• reduce
• reduce

figures that have the same shape, but not the same size

• substitution
• reduce
• evaluate
• equivalent expressions
• similar figures