a
\[14 . 50 = 2 . 7. 10 . 5 = 10 . 10 .7 = 700\]
\[16 . 25 = 4 .4 .25 = 100 . 4 = 400\]
b
\[2100 : 50 = ( 2000 + 100 ) : 50 = ( 2000 : 50 ) + ( 100 : 50 ) = 40 . 2 = 80\]
\[1400 : 25 = ( 1000 + 400 ) : 25 = ( 1000 : 25 ) + ( 400 : 25 ) = 40 + 16 = 56\]
c
\[132 : 12 = ( 144 - 12 ) : 12 = ( 144 : 12 ) - ( 12 :12 ) = 12 - 1 = 11\]
\[96 : 8 = ( 64 + 32 ) : 8 = ( 64 : 8 ) + ( 32 : 8 ) = 8 + 4 = 12\]
