Writing and Solving Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What does 'm' represent in the expression 30m + 25?

Back

In this expression, 'm' represents the number of months.

Front

How do you evaluate an expression?

Back

To evaluate an expression, substitute the values of the variables into the expression and perform the operations.

Front

What is the expression for the total cost if a service charges a monthly fee and a one-time fee?

Back

The expression is the monthly fee multiplied by the number of months plus the one-time fee.

Front

What does the expression 92 ÷ b represent?

Back

It represents the number of prizes in each bag when 92 prizes are split evenly into 'b' bags.

Front

How do you find the cost of each item if you know the total cost and the number of items?

Back

You divide the total cost by the number of items.

Front

What is the expression for the number of frogs left if 'f' frogs hop away from 47 frogs?

Back

The expression is 47 - f.

Front

What does 'x' represent in the expression 324 ÷ x?

Back

In this expression, 'x' represents the number of concert tickets purchased.

Front

What is the difference between an equation and an expression?

Back

An equation states that two expressions are equal, while an expression does not include an equality sign.

Front

What is the purpose of using variables in expressions?

Back

Variables are used to represent unknown values and allow for generalization in mathematical expressions.