How Smart Are You?

No cheating with a calculateor! and its ok to use paper if you cant figure it out JUST NO CALCULATOR!

1 What is 230x48+2
2 What is 274+398-100
3 what is 0+48+193-4
4 what is 589+98-756+56
5 what is 2+5+10+9+4+7+6+4-47
6 what is 110-101
7 what is 101 + 110