What is an Equation in Math? - Definition & Examples


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What is a variable?

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1. You need to earn $2,000. You earn $100 a day. What equation would help you determine the number of days it would take you to earn the whole $2,000?

2. What's the difference between a number sentence and an equation?

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About This Quiz & Worksheet

Curious about how math equations are constructed? Use these tools to test your knowledge of math equations and to teach you key terms and topics you will need to know to pass the quiz.

Quiz & Worksheet Goals

This quiz and worksheet will test you on the following terms and topics:

  • Number sentences versus equations
  • Variables
  • How to use variables in equations
  • Reading number sentences
  • Unknown information notations

Skills Practiced

You can use this interactive quiz and printable worksheet to practice the following skills:

  • Reading comprehension- ensure that you draw the most important information from the related lesson on math equations
  • Problem Solving- use acquired knowledge to solve mathematical practice problems
  • Distinguishing differences- ensure that you can accurately define key phrases, such as number sentence and equation
  • Knowledge differences- use your knowledge to answer questions about math equations

Additional Learning

If you'd like to learn more about basic math equations, take a look at the accompanying lesson on What is an Equation in Math? - Definition & Examples. This lesson will cover the following objectives:

  • Define number sentence, variable, and equation
  • Learn how to construct number sentences
  • Understand how to use variables in place of unknown numbers