Expressions in Words & Symbols

Algebraic Expressions and Variables

Formative Assessment

Algebraic Expressions and Variables

Read and Discuss

  • In algebraic expressions, letters stand for numbers. You can use any letter to represent an unknown value. A letter used in place of a number in an expression is called a variable.
  • Words can be used to describe algebraic expressions.
  • An algebraic expression combines both numbers and letters using the arithmetic operations of addition (+), subtraction (โ€“), multiplication (โ‹…), and division (รท) to express a quantity.

Hint:

Can you:

  • Describe how letters are used in algebraic expressions?
  • Describe what elements might be included in an algebraic expression?