Maths device (10)
I believe the answer is:
calculator
(Other definitions for calculator that I've seen before include "this should provide some answers" , "Ready reckoner" , "See 12" , "Adding machine" , "Sum-doer's aid" .)
I believe the answer is:
calculator
(Other definitions for calculator that I've seen before include "this should provide some answers" , "Ready reckoner" , "See 12" , "Adding machine" , "Sum-doer's aid" .)