are you talking about conditionals: https://docs.unrealengine.com/latest/INT/Engine/Blueprints/UserGuide/FlowControl/
there are other nodes as well to test conditions, such as < <= > >= , as well as And & And/or there is even a compare node
there is even math nodes: https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/ExpressionReference/Math/index.html
& even more here: https://docs.unrealengine.com/latest/INT/BlueprintAPI/Math/index.html
(& you can even make your own)
** if I understand your problem you probably want to either use branch (if) conditionals nested together or maybe even you Compare Integer (or Compare Float) **