Identifying Parts of an Expression

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 is a variable?

Back

A symbol to represent the unknown.

Front

What is a coefficient?

Back

A coefficient is a numerical factor in a term of an expression.

Front

Identify the constant in the expression: 4x + 5.

Back

5 is the constant.

Front

What does the term 'term' mean in an expression?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both, separated by + or - signs.

Front

Write an expression for the total cost of 3 pens and 2 correction tapes if a pen costs $3 and a correction tape costs $2.

Back

3x + 2y, where x is the number of pens and y is the number of correction tapes.

Front

What is the degree of the expression: 2x^2 + 3x + 1?

Back

The degree is 2, which is the highest exponent of the variable.

Front

How do you simplify the expression: 2x + 3x?

Back

You combine like terms to get 5x.

Front

What is the difference between a term and an expression?

Back

A term is a single part of an expression, while an expression is a combination of one or more terms.

Front

Identify the variable in the expression: 7a + 2.

Back

a is the variable.