Task: "I want to use the Google Slides app to share a flash card presentation file with my mother, Bianca.Rossi1967@gmail.com. "
Steps:
click on first flash cards  vertical three dots line option at the top of the screen
click on send a copy button at bottom of the screen from pop up window
click ok on the pop up window at the center of the screen 
click ok on the pop up window at the center of the screen 
choose gmail (top third option) on the pop up window at bottom of the screen
choose just once button at the lower bottom of the screen 
type Bianca.Rossi1967@gmail.com in top second column (TO)of the screen 
click on the send button at the top of the screen to share presentation file