Writing algebraic expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. It does not have an equality sign.

Front

How do you represent the sum of a number x and 5?

Back

x + 5

Front

What does it mean to decrease a number by 7?

Back

To decrease a number n by 7 is represented as n - 7.

Front

How do you express the product of 4 and a variable y?

Back

4y

Front

What is the expression for the difference between 10 and a variable z?

Back

10 - z

Front

How do you write an expression for the total cost of 3 items each costing p dollars?

Back

3p

Front

What does the expression (a + b) represent?

Back

The sum of a and b.

Front

How do you express the division of a number m by 2?

Back

m ÷ 2 or m/2

Front

What is the expression for the sum of 12 and a variable k?

Back

12 + k

Front

How do you represent the total of 5 times a number n and 3?

Back

5n + 3