As the title says... any ideas?

Okay I'm new to this game and wondering what is the best set ups for operations, Like what is the most efficient

When i add 59 to 4100 with the Adder, the green one, it sometimes results in the correct 4159, but sometimes it results with 4519. Also, when adding 400 to 3497, it sometimes results in the correct 3897, but sometimes in 4257. Bug or i am not understanding something?...

Hey, love the game! I just unlocked all the achievements too. I enjoy a simple minimalist game that still has some good strategy to it 👍 As I played, I took some notes of problems or wishes for features... - Search to highlight all sources by number. - Hold shift while placing a belt to lay it in the inverse direction. - Some areas of the UI needs explanation. I played for a long time not realising how to even upgrade, or what the extra numbers shown in Delivered were saying. - See how much is stor...

+1