sub·tract 
/səbˈtrækt/ verb
sub·tracts; sub·tract·ed; sub·tract·ing /səbˈtrækt/ verb : to take (a number or amount) from another number or amount [+ obj] — usually + from ▪ If we subtract 5 from 9, we get 4. ▪ Subtract the expenses from your income. [no obj] ▪ The children are learning how to add and subtract. [=to perform subtraction] — opposite add
