7th Grade Expressions

Front

Back

7x + 9y

Front

How do you calculate percent error?

Back

Percent Error = |(Estimated Value - Actual Value)| / Actual Value * 100%.

Front

If Sandra pays $40.25 for 5 hats, what is the cost per hat?

Back

c = 8.05h, where c is cost and h is the number of hats.

Front

Back

15.45

Front

What is the location of the sum 11 + (-5) on a number line?

Back

5 units left of 11.

Front

What is a variable in algebra?

Back

A symbol used to represent an unknown value, often denoted by letters like x or y.

Front

What does it mean to simplify an expression?

Back

To combine like terms and reduce the expression to its simplest form.

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Front

How do you find the sum of two integers?

Back

Add the values together, considering their signs.

Front

What is the definition of an expression in mathematics?

Back

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