← All standards
Book a free classFree class
Common CoreCCSS.Math.Content.K.NBT.1CCSS-2010

Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g.,…

Common Core·math·Kindergarten·Bloom: Create·Last verified: May 21, 2026

Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings, and record each composition or decomposition by a drawing or equation (e.g., 18 = 10 + 8); understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.

🎯 Practice this standard →Open publisher source ↗

Skills that teach this standard (1)

1 with free practice questions
The teen numbers →
Number Representation & Place Value · Ages 5–7 · try 3 free questions

Concepts covered (0)

Showing all

No concepts mapped to this standard yet. Our curriculum library is expanding — check back soon.

Standards are re-verified against the publisher source quarterly. See all standards →