Written Expressions

Front

What is a coefficient?

Back

A coefficient is a number that is multiplied by a variable in an expression. For example, in the expression 7c, 7 is the coefficient.

Front

What does the term 'subtract' mean?

Back

Subtract means to take one number away from another. It is represented by words like difference, minus, less than, and decreased by.

Front

How do you express 'a number less than 2' in algebraic form?

Back

The expression is x - 2.

Front

What is the equation for 'double a number is 30'?

Back

The equation is 2x = 30.

Front

What is a term in mathematics?

Back

A term is a single mathematical expression that can be a number, a variable, or a coefficient multiplied by a variable.

Front

What is a variable?

Back

A variable is a symbol, often a letter, that represents an unknown number in mathematical expressions and equations.

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operations (like addition or multiplication) that represents a value.

Front

What does 'numerical expression' mean?

Back

A numerical expression is a mathematical phrase that includes numbers and operation symbols but does not include variables.

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 does 'double' mean in mathematics?

Back

To double a number means to multiply it by 2.