# CCSS.1.NBT.B.2

place value, tens, ones, two digit numbers; represent, explain, decompose.

System: US Common Core Math
Route: /math/standards/us-ccss/curratom-us-ccss-1-nbt-b-2
Skills: 1

## Skills and Examples

- [Place Value Tens Ones](/math/skills/nbt/place-value-tens-ones) — Base-Ten Place Value and Whole-Number Notation