1+1+1+1+1+1+1+1+1+1 -10 +10-10 = 0
Học tốt nhé bạn Oanh ~!!!!!!!!!
1+1+1+1+1+1+1+1+1+1-10+10-10
=1 x 10 - 10 + 10 - 10
= 10 - 10 + 10 - 10
= (10 - 10 ) + ( 10 -10 )
= 0 + 0
= 0
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 - 10 + 10 -10 = 1 . 10 - 10 + 10 - 10
= 10 - 10 + 10 - 10
= 0 + 0 = 0
1 + 1 + 1 + 1 + 1 + 1+ 1 + 1 + 1 + 1 - 10 + 10 + 10 = 0
~ Hok tốt ~
K mk nha .
1 + 1 + 1 + 1 + 1 + 1 + 1 +1 + 1 + 1 - 10 + 10 -10
= 1 . 10 - 10 + 10 - 10
= 10 - 10 + 10 -10
= 0 + 0
=0