Another handy one – when typing cmd + right/left arrow is like home and end on a windows keyboard.
Cmd + up/down when typing highlights text. When not in a text window it takes you to top of a page or bottom of a page.
Print Screen – # Hold down Apple key ? + Shift + 3 and release all
# then use your mouse to click on the screen
Print a portion of screen – # Hold down Apple key ? + Shift + 4 and release all key
# Now, You will see the mouse cursor will change to + – drag around your capture.
Also – dont take this the wrong way but Google is your friend here. a term like:
mac keyboard delete into google will help you or mac print screen