Business, istruzione, persone e concetto tecnologico - primo piano delle mani maschili con calcolatrice, borchie di carta strette e quaderno che risolve compiti geometrici - Foto e immagini stock

Business, education, people and technology concept - close up of male hands with calculator, cramped paper wads and notebook solving geometric task

Business, education, people and technology concept - close up of male hands with calculator, cramped paper wads and notebook solving geometric task

Business, education, people and technology concept - close up of male hands with calculator, cramped paper wads and notebook solving mathematical task or equation

Business, education, people and technology concept - close up of male hands with calculator, cramped paper wads and notebook solving mathematical task or equation

Business, education, people and technology concept - close up of close up of male hands with calculator, cramped paper wads and notebook on table

Business, education, people and technology concept - close up of male hands with calculator, cramped paper wads and notebook solving mathematical task or equation

Business, education, people and technology concept - close up of close up of male hands with calculator, cramped paper wads and notebook on table

Business, education, people and technology concept - close up of male hands with calculator, pen and notebook solving geometric task

Business, education, people and technology concept - close up of close up of male hands with calculator, cramped paper wads and notebook on table

Business, education, people and technology concept - close up of close up of male hands with calculator, cramped paper wads and notebook on table

Business, education, people and technology concept - close up of female hands with calculator, pen and notebook on table

Business idea, education, people and technology concept - close up of female hands with calculator, pen and lighting bulb drawing in notebook on table

Business, education, people and technology concept - close up of female hands with calculator, pen and notebook on table

Business, education, people and technology concept - close up of male hands with calculator and coffee cup writing to notebook by pen on table

Business, education, people and technology concept - close up of male hands with calculator and coffee cup writing to notebook by pen on table