Writing 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 it mean for two expressions to be equivalent?

Back

Two expressions are equivalent if they have the same value for all values of the variables.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac, meaning you can distribute a factor across a sum.

Front

What is a term 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

What is a coefficient?

Back

A coefficient is a numerical factor in a term that is multiplied by a variable.

Front

What does 'more than' indicate in writing expressions?

Back

'More than' indicates addition in an expression.

Front

How do you represent '14 decreased by b' in an expression?

Back

The expression is written as 14 - b.

Front

What is the sum of 4x and 3?

Back

The expression is written as 4x + 3.

Front

What does 'combined' mean in the context of writing expressions?

Back

'Combined' refers to the addition of two or more quantities.

Front

What is the difference between an expression and an equation?

Back

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