Writing and Solving Equations (6.EE.7)

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents an unknown value in an equation or expression.

Front

What is the first step in solving the equation x - 32 = 49?

Back

Add 32 to both sides of the equation to isolate the variable x.

Front

What is the solution to the equation x - 32 = 49?

Back

x = 81.

Front

How do you write an equation for the number of grandstand seats in a stadium with 18,000 total seats and 7,500 field seats?

Back

s + 7,500 = 18,000.

Front

What principle must you follow when solving equations?

Back

Whatever you do to one side of the equation, you must do to the other side.

Front

What is the equation to find how much more flour Nancy needs if she needs 7 cups and has already used 3.5 cups?

Back

3.5 + f = 7.

Front

What is the solution to the equation 3.5 + f = 7?

Back

f = 3.5 cups.

Front

How do you find the cost of one notebook if Jim buys 13 notebooks for $39.13?

Back

Divide the total cost by the number of notebooks: $39.13 / 13 = $3.01.