Addition & Subtraction (1–20) – Common Core Standards

Grades: Kindergarten–Grade 2

Kindergarten

• K.OA.A.1 – Represent addition and subtraction with objects, drawings, sounds, acting out, verbal explanations, expressions, or equations.
• K.OA.A.2 – Solve addition and subtraction word problems; add and subtract within 10.
• K.OA.A.5 – Fluently add and subtract within 5.

Grade 1

• 1.OA.A.1 – Use addition and subtraction within 20 to solve word problems.
• 1.OA.B.3 – Apply properties of operations (commutative/associative).
• 1.OA.B.4 – Understand subtraction as an unknown-addend problem.
• 1.OA.C.5 – Relate counting to addition and subtraction.
• 1.OA.C.6 – Add and subtract within 20; fluency within 10.

Grade 2

• 2.OA.B.2 – Fluently add and subtract within 20 using mental strategies; know from memory all one-digit sums by year end.

Educational Value

These coloring pages build foundational number sense and fluency, reinforce the inverse relationship between addition and subtraction, and support strategies like counting on/back and making ten—while promoting focus and fine-motor skills.