Math Terms in Expressions

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

replacing a variable with a number or expression

• equivalent fractions

• substitution

• evaluate

• equivalent expressions

• similar figures

a letter that represents an unknown value

• evaluate

• equivalent ratios

• variable

• substitution

• expression

Define terms.

• parts of an expression or equation separated by + or -.

• parts of a sentence

• many ways to do a problem

• parts of a car

Select the coefficient in 8x + 2.

• x

• 8x

• 8

• +2

Define algebraic expression.

• a number multiplied by a variable

• a math phrase that may have numbers, variables, and operations

• a math statement setting two expressions equal

• a set of solutions

Define coefficient.

• the number multiplied by a variable

• to replace a value for a variable

• a number standing alone

• to find the value of an expression

Define constant.

• the number multiplied by a variable

• to replace a value for a variable

• a number standing alone

• to find the value of an expression

Define substitute.

• the number multiplied by a variable

• to replace a variable with a value or an expression

• a number standing alone

• to find the value of an expression

Define evaluate.

• the number multiplied by a variable

• to replace a value for a variable

• a number standing alone

• to find the value of an expression