# CCSS.2.MD.A.3

length estimation, standard units; estimate, measure.

System: US Common Core Math
Route: /math/standards/us-ccss/curratom-us-ccss-2-md-a-3
Skills: 3

## Skills and Examples

- [Length Estimate](/math/skills/measure/length-estimate) — Measurement Units, Tools, Time, and Money
- [Length Measure Ruler](/math/skills/measure/length-measure-ruler) — Measurement Units, Tools, Time, and Money
- [Length Standard Units](/math/skills/measure/length-standard-units) — Measurement Units, Tools, Time, and Money