Writing Expressions

Front

What is a coefficient in an expression?

Back

A coefficient is a numerical factor in a term of an expression, indicating how many times the variable is multiplied.

Front

What is a variable in an expression?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression.

Front

What does it mean for 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 term for the result of adding two or more numbers?

Back

The term is 'sum'.

Front

What is the term for the result of subtracting one number from another?

Back

The term is 'difference'.

Front

What does 'more than' indicate in writing expressions?

Back

'More than' indicates addition in an expression.

Front

What is the expression for 3 times the sum of x and 5?

Back

The expression is 3(x + 5).

Front

What is a constant in an expression?

Back

A constant is a fixed value that does not change.

Front

What is the result of combining like terms 2x + 3x?

Back

The result is 5x.

Front

What does 'combined' indicate in writing expressions?

Back

'Combined' indicates addition in an expression.