Rounding student input

New to this whole thing so try to answer in beginner terms…

I am having students type in a computation on one slide (#-#)/# and I want to take that answer and have it show up later on. I was actually able to figure that out! But I want that answer rounded to 2 decimals. That I can not figure out…

numericValue("\round( ${whateverInputName.latex}, 2) ")

That worked! Thank you so much