A) 7943-1632=6311
V. -6311+1632=7943
-7943-6311=1632
B) 18000-1908=16092
V. - 16092+1908=18000
-18000-16092=1908
C) 43145-27634=15511
V. -15511+27634=43145
43145-15511=27634
D)69400-17800=51600
V.-51600+17800=69400
-69400-51600=17800
E) 724123-94985=629138
V.-629138+94985=724123
-724123-629138=94985