(-1) × (-1) × (-1) =

( - 70 ) x ( -35 ) x 0 x ( - 63 ) = 

Additive identity is

0 x 2341 =

a - (-b) =_____________ if the value of a = 21, b = 18.

__________ is neither positive nor negative.

The negative of a negative integer is

Subtract -16 from -32

(-3) ×_________ = 27

________ + 1 = 0.