Tính giá trị biểu thức sau: B= -418-{-218-[-118-(-318)+2012]}
Giải thích
B=−418−−218−−118−−318+2012 =−418−−218−−118+318+2012 =−418−−218−200+2012 =−418−−218−2212 =−418−−2430 =−418+2430 =2012.
B=−418−−218−−118−−318+2012 =−418−−218−−118+318+2012 =−418−−218−200+2012 =−418−−218−2212 =−418−−2430 =−418+2430 =2012.