If you're confused with a concept or topic, I highly suggest asking questions whether its your friend or of course emailing your teacher. Stay persistent with your work, don't fall behind because speaking from experience, it's horrible trying to come up from it. Take notes, a lot of them too.
1) 200x10=2000 then 1/10 = 200
2) 10x10=100= then 1/10 = 10
3) 700x10= 7000 then 1/10 = 700
4) 5000x10=50000 then 1/10 = 5000 Hopefully that helps you ❤
