(-1) × (-1) × (-1) =

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

(-3) ×_________ = 27

(-30) x [(13 + (-3)] = 

Adding 23 to a number we get -143 .Which is the number ?

7 x 1 = 1 x 7 = 7.  State the property used here.

Subtract -16 from -32

( - 70 ) x ( -35 ) x 0 x ( - 63 ) = 

Additive identity is

[(14 + (-11)] + (-5) = 14 + [(-11) + --------]