(37-575)-(475-63)=37-575-475+63=(37+63)+(575-475)=100+100=200
(37-575)-(475-63) = (575-475)-(63-37) = 100-26 = 74
( 37-575)-(475-63)
= 37-575-475+63
=(37+63)-(575-475)
=100-100
=0
(37-575)-(475-63) = 37-575-475+63 = (37+63)-(575-475) = 100-100 = 0
= 37-575-475+63 = 37+63-575-475 = (37+63)-(575+475) = -950
(đây mới là kết quả đúng)