Add up and Run into

Add up verb - Add up in number or quantity.

Run into and add up are semantically related in extend topic. In some cases you can use "Run into" instead a verb "Add up", when it comes to topics like count.

Run into verb - Collide violently with an obstacle.

Add up and run into are semantically related in extend topic. Sometimes you can use "Add up" instead a verb "Run into", if it concerns topics such as count.