Chapter 7, Day 12 Warm Up

Front

Evaluate when r = 2: 150r + 15 – 7r

Back

301

Front

How many terms does this expression have? 6a + 4b - 7

Back

3

Front

Ashley has c cookies for lunch and Iliana has 3 times as many. Which expression shows how many cookies Iliana has for lunch?

Back

3c

Front

Identify the variables in the expression: 3x + 9

Back

x

Front

Which phrase describes this expression? 6y + 4

Back

The product of 6 and y plus 4

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value.

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operators without an equality sign.

Front

What does it mean to evaluate an expression?

Back

To calculate the value of the expression by substituting variables with numbers.

Front

What is a term in an algebraic expression?

Back

A single mathematical expression that can be a number, variable, or the product of numbers and variables.

Front

What is the coefficient in the expression 4x + 5?

Back

4 (the number multiplying the variable x).