2 câu trả lời
(100+23).23+(200-77).77+456
= 123.23+123.77+456
= 123.(23+77)+456
= 123.100+456
= 12300+456
= 123456
(100 + 23 ).23 + (200 - 77 ).77 + 456
= 123 . 23 + 123 . 77 + 456
= 123 (77 + 23 ) + 456
= 123 . 100 + 456
= 12300 + 456
= 12756
(100+23).23+(200-77).77+456
= 123.23+123.77+456
= 123.(23+77)+456
= 123.100+456
= 12300+456
= 123456
(100 + 23 ).23 + (200 - 77 ).77 + 456
= 123 . 23 + 123 . 77 + 456
= 123 (77 + 23 ) + 456
= 123 . 100 + 456
= 12300 + 456
= 12756
