How Do You Evaluate an Expression with Exponents?

How Do You Evaluate an Expression with Exponents?

Note:

Need to plug in a variable value into an expression? Great! Does the expression have an exponent in it? Even better! Follow along with this tutorial as you see how to simplify an expression for a given variable value.

Keywords:

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  • exponent
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  • expression
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  • variable
  • variables
  • order of operations
  • multiply
  • multiplication
  • plug in variable
  • evaluate exponents
  • simplify
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Background Tutorials

  • Write and evaluate numerical expressions involving whole-number exponents.

      • How Do You Evaluate an Exponent?How Do You Evaluate an Exponent?

      How Do You Evaluate an Exponent?

      Exponents just indicate repeated multiplication. Watch this tutorial to see how you can evaluate an exponent by first writing it in expanded form. Take a look!

  • Evaluate expressions at specific values of their variables. Include expressions that arise from formulas used in real-world problems. Perform arithmetic operations, including those involving whole-number exponents, in the conventional order when there are no parentheses to specify a particular order (Order of Operations).

      • What is a Variable?What is a Variable?

      What is a Variable?

      You can't do algebra without working with variables, but variables can be confusing. If you've ever wondered what variables are, then this tutorial is for you!

  • Understand p + q as the number located a distance |q| from p, in the positive or negative direction depending on whether q is positive or negative. Show that a number and its opposite have a sum of 0 (are additive inverses). Interpret sums of rational numbers by describing real-world contexts.

      • How Do You Add Integers Using a Number Line?How Do You Add Integers Using a Number Line?

      How Do You Add Integers Using a Number Line?

      Combining integers? You could use a number line to help find the answer! In this tutorial, see how to use a number line to add together integers with the same sign and ones with opposite signs. Take a look!

Further Exploration

  • Know and apply the properties of integer exponents to generate equivalent numerical expressions.

      • What's the Product of Powers Rule?What's the Product of Powers Rule?

      What's the Product of Powers Rule?

      Working with exponents can be lots of fun, as long as you understand how they work. In this tutorial you'll see how exponents add when you multiply the same number raised to different exponents!