Writing Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that includes numbers, variables, and operations (like addition, subtraction, multiplication, and division).

Front

What is a variable in an algebraic expression?

Back

A variable is a symbol (usually a letter) that represents an unknown number. For example, in the expression 3x + 5, 'x' is the variable.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a number that is multiplied by a variable. In the expression 4x, 4 is the coefficient.

Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change. In the expression 3x + 5, 5 is the constant.

Front

How do you write 'five less than a number x' as an algebraic expression?

Back

x - 5

Front

How do you write 'the sum of a number y and 10' as an algebraic expression?

Back

y + 10

Front

What does it mean to 'double' a number?

Back

To double a number means to multiply it by 2.

Front

How do you write 'twice a number g' as an algebraic expression?

Back

2g

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers and variables without an equality sign, while an equation states that two expressions are equal.

Front

What is the algebraic expression for 'the product of 3 and a number n'?

Back

3n