Do u only keep change flip when adding?

no not just for adding!!! you could also use it for dividing and many more

no you do not use keep change flip in adding, subtracting and multiplying  you use it in dividing.

Explanation:

1/2 divided by 3/2

1/2 + 2/3 = 3/5

hope this helps!

~ Olive Oil

what is a theme?

ans: the implicit idea of a written work of literature is called a theme.

so, the only theme of "birdfoot's grampa" by joseph bruchuc is that as a human being one should always remember the value of every life on earth.

the grampa is stopping the car again and again to save those little toads from washing away in the heavy rain is an act of kindness and humanity.