38+(-135)-38 = 38 - 135 - 38 = ( 38 - 38 ) - 135 = 0 - 135 = -135
38+(-135)-38=(38-38)+(-135)=0+(-135)=-135
38+(-135)-38 = 38-38+(-135)=0+(-135)=-135
k nha !!!THANKS!!!
Tính nhanh à, ok:
38+(-135)-38
=38-38+(-135)
=0+(-135)
=-135.
Dễ quá.
38 + ( -135 ) - 38
=38 - 135 - 38
= ( 38 - 38 ) -135
= 0- 135
= -135