# CCSS.7.NS.A.3

rational number operations, word problems; solve, calculate, model.

System: US Common Core Math
Route: /math/standards/us-ccss/curratom-us-ccss-7-ns-a-3
Skills: 1

## Skills and Examples

- [Operations with positive and negative rational numbers](/math/skills/number/rational-operations-negative) — Base-Ten Place Value and Whole-Number Notation