#그림연산문제(펌)
첫댓글 답 21
풀이 (13.5+1.5)+(13.5+1.5)+(13.5+1.5)=45(5+5)+(5+5)+(5+5)=30(1.5+1.5)×(1.5+1.5)×(1.5+1.5)=2713.5+5×1.5=21
첫댓글 답 21
풀이
(13.5+1.5)+(13.5+1.5)+
(13.5+1.5)=45
(5+5)+(5+5)+(5+5)=30
(1.5+1.5)×(1.5+1.5)×(1.5+1.5)
=27
13.5+5×1.5=21