Intro to variables and algebraic expressions

Front

What is a variable in algebra?

Back

A variable is a symbol, usually a letter, that represents a number that can change or vary.

Front

What is an algebraic expression?

Back

An algebraic expression is a combination of numbers, variables, and operations (like addition, subtraction, multiplication, and division).

Front

What does 'product' mean in math?

Back

The product is the result of multiplying two or more numbers together.

Front

How do you represent 'the number of girls' in algebra?

Back

You can represent it with a variable, such as g.

Front

What does 'increased by' mean in an expression?

Back

'Increased by' means to add a number to another number.

Front

What does 'less than' mean in an expression?

Back

'Less than' means to subtract a number from another number.

Front

What is the expression for 'six times the number of girls'?

Back

6g, where g is the number of girls.

Front

What is the expression for 'eight plus triple the number of shirts'?

Back

8 + 3s, where s is the number of shirts.

Front

What is the operation in the expression 4y - 8?

Back

The operation is subtraction (-).

Front

How do you write 'the sum of a number and 5'?

Back

You can write it as x + 5, where x is the number.