Simplify peach of the following and express the result as a rational number in standard from:
(i) −1621×145
(ii) 76×−328
(iii) −1936×16
(iv) −139×27−26
(i) Given −1621×145
=−16×1421×5=−3215
(ii) Given 76×−328
=7×−36×28=−18
(iii) Given −1936×16
=−19×49=−769
(iv) Given −139×27−26
=−13×279×(−26)=32