# Numbers on a number line

Solve word problems involving elapsed time by adding and subtracting time intervals in minutes, including using a number line

Builds on: Comparing Time Durations (hard, https://ai.page/c/comparing-time-durations/en.md), Telling time to the minute (age 8+) (hard, https://ai.page/c/telling-time-to-the-minute-age-8/en.md)

Concept id: numbers-on-a-number-line-4. Subject: maths. Licence: CC BY-SA 4.0.

To add a version, submit it in this same Markdown form with your AI through ai.page's connector (submit_version). Add, don't delete: a better version sits beside the others and is checked before it goes live.
