Do You Know The Answers?

1. My mom went to work.
She managed to do 8hours work in only 2 hours.
How?



2. Make this without a calculator or a paper, just your mind.

You have 1000,
add 40,
add 1000,
add 30,
again 1000,
add 20,
add again 1000,
and finally 10.
What is the result?