What is covered under 1.OA.B.4?

1.OA.B.4 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.B.4 resources free?

Yes. Every activity and worksheet aligned to 1.OA.B.4 is free to use online and to print — no signup and no paywall.

Who are these 1.OA.B.4 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.

1.OA.B.4 — Free Activities & Worksheets

Free Common Core 1.OA.B.4 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.B.4

Interactive activities

Grade 1·1.OA.B.4

Find the Missing Part — Subtraction as a Number Bond (Grade 1)

A free interactive Grade 1 math activity: see a subtraction like 8 − 3 as a number bond — the whole and one part are given, fill in the missing part. Builds subtraction as an unknown-addend (3 and ? make 8). Common Core 1.OA.B.4.

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Frequently asked questions

What is covered under 1.OA.B.4?: 1.OA.B.4 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.B.4 resources free?: Yes. Every activity and worksheet aligned to 1.OA.B.4 is free to use online and to print — no signup and no paywall.
Who are these 1.OA.B.4 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.

Interactive activities

Find the Missing Part — Subtraction as a Number Bond (Grade 1)

Related standards in 1.OA

Frequently asked questions