-2²÷4/9+|-7|-3×(-1/3),
-2²÷4/9+|-7|-3×(-1/3)
=-4*9/4+7+1
=-9+8
=-1
(1)(-1)2013×3+4÷(-2)³
=-3+4÷(-8)
=-3-1/2
=-7/2