Examples for

Common Core Math: Grade 1: Algebraic Thinking

In first grade, students interpret and perform addition and subtraction up to 20, including addition of three whole numbers. Students represent their thinking with concrete objects, visual representations and algebraic equations and apply arithmetic to real-world scenarios described in word problems. Students apply the commutative property of addition to add numbers in any order and explore the inverse relationship between addition and subtraction.

Common Core Standards

Get information about Common Core Standards.

Look up a specific standard:

Search for all first grade standards in a domain:


Solve addition and subtraction equations.

Determine if an equation is true or false (CCSS.Math.Content.1.OA.D.7):

Solve equations (CCSS.Math.Content.1.OA.D.8):

Addition & Subtraction

Perform addition and subtraction.

Add and subtract whole numbers (CCSS.Math.Content.1.OA.C.6):

Add multiple whole numbers (CCSS.Math.Content.1.OA.A.2):

Use addition and subtraction in counting (CCSS.Math.Content.1.OA.C.5):