"back-of-the-envelope" içeren İngilizce örnek cümleler

Doing some quick back-of-the-envelope calculations, he reckoned that the raw materials actually cost less than one-thirtieth of the selling price.
Translate from İngilizce to İspanyolca

We can do some back-of-the-envelope calculations before all the facts come in.
Translate from İngilizce to İspanyolca