2.NBT.A.3 — Free Activities & Worksheets

Free Common Core 2.NBT.A.3 activities and worksheets for Grade 2, aligned to the Number & Operations in Base Ten strand. Browser-playable interactive exercises plus printable PDFs, available in all 11 supported languages — no signup, no paywall.

Grade 2·Number & Operations in Base Ten·2.NBT.A.3

Interactive activities

Grade 2·2.NBT.A.3

Expanded Form

Build each three-digit number with hundreds, tens, and ones — then see its expanded form. Tap to add a hundreds-flat, a ten-rod, or a unit-cube; when it is right, the blocks reveal the place values that add up to the number (247 = 200 + 40 + 7). Numbers like 305 show that a zero tens place adds nothing — just 300 + 5. Aligned to Common Core 2.NBT.A.3 — reading and writing three-digit numbers in expanded form.

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Grade 2·2.NBT.A.3

Three Ways to Show a Number

Match the cards that show the same number — the numeral (like 305), the number in words (three hundred five), and the expanded form (300 + 5). Tap one card, then its match, and watch the pair link. Each round has three numbers to find. Aligned to Common Core 2.NBT.A.3 — reading and writing numbers to 1000 as base-ten numerals, number names, and expanded form.

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Related standards in 2.NBT

Frequently asked questions

What is covered under 2.NBT.A.3?
2.NBT.A.3 sits in the Number & Operations in Base Ten strand for Grade 2. This page gathers the free interactive activities and worksheets aligned to it.
Are these 2.NBT.A.3 resources free?
Yes. Every activity and worksheet aligned to 2.NBT.A.3 is free to use online and to print — no signup and no paywall.
Who are these 2.NBT.A.3 activities for?
They are built for Grade 2 teachers and learners following the Common Core Number & Operations in Base Ten progression, and work for class, small-group, or home practice.