# CCSS.3.MD.A.1

time, elapsed time, number line; read, write, solve.

System: US Common Core Math
Route: /math/standards/us-ccss/curratom-us-ccss-3-md-a-1
Skills: 2

## Skills and Examples

- [Elapsed time across hours](/math/skills/measure/time-elapsed-cross-hour) — Measurement Units, Tools, Time, and Money
- [Time Elapsed Same Hour](/math/skills/measure/time-elapsed-same-hour) — Measurement Units, Tools, Time, and Money