Question

I need step by step explanation for this! thank u >33

Answer 1

:ABCD and 4|CD

(A.1000)+(B.100)+CD/4

100(10.A+B)+CD/4

100(10.A+B)/4 + CD/4

Answer 2

ABCD and 4|CD

(A.1000)+(B.100)+CD/4

100(10.A+B)+CD/4

100(10.A+B)/4 + CD/4

Thus,

25(10.A+B) + CD/4, because 4|CD

Brazil number one