(1)9+5×(-3)-(-2)2÷4=9-15-4÷4=9-15-1=-7; (2)( 1 3 ? 1 2 )×(?6)+(? 1 2 )2÷(? 1 2 )3=-2+3+ 1 4 ÷(- 1 8 )=-2+3-2=-1.