Common Core: 6th Grade Math

Explore the foundational concepts of mathematics through engaging lessons and problem-solving strategies designed for 6th graders.

Advanced Topics

Solving Equations and Expressions

Cracking the Code: Equations and Expressions

An expression is a math sentence with numbers and symbols, but no equals sign. An equation has an equals sign and shows two things are the same.

How to Solve Equations

  • One-Step Equations: Get the variable by itself by doing the opposite operation.
  • Checking Your Work: Plug your answer back in to see if it works!

Real-World Connections

Equations help you solve for unknowns, like figuring out how much money you need to buy a game after saving some allowance.

Tips

Remember, whatever you do to one side of the equation, do to the other!

Key Formula

\[x + 5 = 12\]

Examples

  • If x + 7 = 10, then x = 3.

  • Expression: 3y + 2. Equation: 3y + 2 = 11.

In a Nutshell

Equations help us find unknown values, while expressions show relationships between numbers.

Key Terms

Equation
A mathematical statement that shows two things are equal.
Variable
A letter or symbol that stands for a number.