# CCSS.1.NBT.C.5

place value, ten more, ten less; calculate, explain.

System: US Common Core Math
Route: /math/standards/us-ccss/curratom-us-ccss-1-nbt-c-5
Skills: 1

## Skills and Examples

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