1.OA.A.2 — Free Activities & Worksheets
Free Common Core 1.OA.A.2 activities and worksheets for Grade 1, aligned to the Operations & Algebraic Thinking strand. Browser-playable interactive exercises plus printable PDFs, available in all 11 supported languages — no signup, no paywall.
Grade 1·Operations & Algebraic Thinking·1.OA.A.2
Interactive activities
Grade 1·1.OA.A.2
Add Three Numbers — Three-Part Number Bond (Grade 1)
A free interactive Grade 1 math activity: see three parts join into one whole in a number bond, then add the three numbers and type the total (3 + 4 + 5 = 12). Adding three whole numbers within 20. Common Core 1.OA.A.2.
Try itPrintable worksheets for this standard
- Secret Code Addition with Accessories — Grade 1
- Secret Code Addition with Animals — Grade 1
- Secret Code Addition with Supermarket Things — Grade 1
- Secret Code Addition with Bakery Treats — Grade 1
- Secret Code Addition with Beach Things — Grade 1
- Secret Code Addition with More Birds — Grade 1
- Secret Code Addition with Breakfast — Grade 1
- Secret Code Addition with Christmas — Grade 1
- Secret Code Addition with Classroom Objects — Grade 1
- Secret Code Addition with Clothes — Grade 1
- Secret Code Addition with Desserts and Sweets — Grade 1
- Secret Code Addition with Dinosaurs — Grade 1
Related standards in 1.OA
Frequently asked questions
- What is covered under 1.OA.A.2?
- 1.OA.A.2 sits in the Operations & Algebraic Thinking strand for Grade 1. This page gathers the free interactive activities and worksheets aligned to it.
- Are these 1.OA.A.2 resources free?
- Yes. Every activity and worksheet aligned to 1.OA.A.2 is free to use online and to print — no signup and no paywall.
- Who are these 1.OA.A.2 activities for?
- They are built for Grade 1 teachers and learners following the Common Core Operations & Algebraic Thinking progression, and work for class, small-group, or home practice.