Math Finding the Variable Worksheets

This is a symbol, usually a letter, that stands for a number.

• Variable

• Expression

• Equation

• Coefficient

The number before the variable. This number is multiplied by the variable.

• Variable

• Term

• Coefficient

• Exponent

What does it mean to isolate the variable?

• To multiply the variable

• To divide the varaible

• To put the variable with as many numbers as possible

• To get the variable by itself

What are the terms in the expression?
4x + 6y - 2

• 4x, 6y, -2

• x, y

• 4x, 6y

• -2

Write an expression to represent the following situation.

Susan's age in three years, when a represents her present age.

Mathematical Equivalence

ON

Mrs. Guang purchased four airline tickets to Florida. She will also pay a fee of $55 for an extra piece of luggage. Define a variable and write an expression to represent her total cost of flying to Florida.

• l = (pieces of) luggage

• 4l + 55

• 55t + 4

• t = (number of) tickets

• 4t + 55

• 55l + 4

The distance around a basketball, or circumference, is about three times the circumference of a softball. Define a variable and write an expression to represent the circumference of a basketball.​ (a)   ​ (b)  

• c = circumference of a softball

• 3c

• c = circumference of a basketball

• c + 3

• 3c + c

• c - 3

What is the definition of a variable?

• A letter or symbol that represents an unknown quantity

• The little number or letter used to raise to a power

• The number in front of a variable

• The number with no variable

a symbol for an unknown value; usually a letter (such as a, x, or y) is the symbol used

• constant

• variable

• coefficient

• term

Write an expression using a variable to represent the expression​ (a)  

g less than 8

• g-8

• g/8

• 8g

• 8+g

• 8-g