2 (1).11(2).-20 (3). Five sixths.

3( 1).(- 17)+(+7)+49+(-9)=30

(2).(-3.2)+3.2+4.6+(-5.6)=- 1

(3).(- 1/3)+2/3+(-2/7)+(-5/7)=4/3

4.2 1+ 10-20- 10= 1

5. 10-8+2+5-4-4+6=7

6.32*8+2- 1+3-3-3+4+2=260

Son, your math is really not so good. Just use the calculator in the computer. Don't type so hard in future.