1-(-1).2-(3).(-4)
2-(-8).6-5.7
3-7-3.(-8)
4-7.3-8.(-2)
5-12-7.(-5)
6-4.+(-2)
7-(-5).(-2)+(-3)
8-(-2).(-4)-(-5)
9-(-6)-(+3)+6.(-4)
2-(-8).6-5.7
3-7-3.(-8)
4-7.3-8.(-2)
5-12-7.(-5)
6-4.+(-2)
7-(-5).(-2)+(-3)
8-(-2).(-4)-(-5)
9-(-6)-(+3)+6.(-4)
2) -48-35= -83
3) 7+24= 31
4) 21+16= 37
5) 12+35= 47
6) 4-2= 2
7) 10-3= 7
8) 8+5= 13
9)-6-3-24= -33