23 + 77 - 23 - 77
=(23 - 23) + (77 - 77)
=0 + 0
= 0
HỌC TỐT NHA BẠN
\(23+77-23-77=\left(23-23\right)+\left(77-77\right)=0\)
23+77-23-77
=(23-23)+(77-77)
=0+0
=0
~hok tốt~
23 + 77 - 23 - 77
= 23 + 77 + ( - 23 ) + ( - 77 )
= [ 23 + ( - 23 ) ] + [ 77 + ( - 77 ) ]
= 0 + 0
= 0
23 + 77 - 23 - 77
= ( 23 - 23 ) + ( 77 - 77 )
= 0 + 0
= 0
23 + 77 - 23 - 77
= (23 - 23) + (77 - 77)
= 0 + 0
= 0
23+77-23-77
= ( 23 - 23 ) + ( 77 - 77 )
= 0+0
=0
23 + 77 - 23 - 77
= ( 23 - 23 ) + ( 77 - 77 )
= 0 + 0
= 0
23+77-23-77
=(23-23)+(77-77)
=0+0
=0
23 + 77 - 23 - 77
= (23 - 23) + (77 - 77)
= 0 + 0
= 0