Unlock harder levels by getting an average of 80% or higher.

Earn up to 5 stars for each level
The more questions you answer correctly, the more stars you'll unlock!

Each game has 10 questions.
Green box means correct.
Yellow box means incorrect.

Unlock harder levels by getting an average of 80% or higher.

Earn up to 5 stars for each level
The more questions you answer correctly, the more stars you'll unlock!

Each game has 10 questions.
Green box means correct.
Yellow box means incorrect.

More Ways To Use Math Games
Game Quickplay
Video Help

Need some help or instruction on how to do this skill?

Offline Worksheets

Want a paper copy? Print a generated PDF for this skill.

Top Mathematicians Leaderboards

See how you scored compared to other students from around the world.

Start a MathJam

Learn Math Together.

Math Games for Teachers

Grade 3 - Patterns and Relations

Standard 3.PR.3 - Practice using addition and subtraction to solve for a variable.

Included Skills:

Solve one-step addition and subtraction equations involving symbols representing an unknown number.
Explain the purpose of the symbol, such as a triangle or a circle, in an addition or a subtraction equation with one unknown.
Create an addition or subtraction equation with one unknown to represent a combination or separation action.
Provide an alternative symbol for the unknown in an addition or subtraction equation.
Solve an addition or subtraction equation that represents combining or separating actions with one unknown, using manipulatives.
Solve an addition or subtraction equation with one unknown using a variety of strategies including guess and test.
Explain why the unknown in an addition or subtraction equation has only one value.

If you notice any problems, please let us know.