Write algebraic expressions!

Algebraic Expressions

An algebraic expression is a math expression that can include numbers (like 5 or ¹/₂), variables (like x or y) and operation symbols (like +, -, · or ÷). 

An expression that does not include variables can be referred to as a numeric expression.

Words and phrases can be translated into these kinds of expressions.

Examples

Here are some word phrases used in different algebraic expressions.

Addition

---

Subtraction

---

Multiplication

---

Division

Practice

Write a numeric or algebraic expression to represent each phrase.

1.    15 added to the sum of 11 and 18

2.    7.3 times a number, n

3.    15 decreased by 8

4.    5 more than the difference of 12 and 4

5.    10 less than the quotient of an unknown amount, x, and 4

6.    half of the sum of 9 and 3 

Answers

1.  15 + (11 + 18)

2.  7.3n

3.  15 - 8

4.  (12 - 4) + 5

5.  ^x/₄ - 10

6.  ¹/₂(9 + 3)