Question

Tính các tổng sau:

a) -(-315)+ (-115)- 105+25

b) 888-(-333)-222+111

c) -97-15+44-35-12+98

Answer 1

\(a.\)

\(-\left(-315\right)+\left(-115\right)-105+25\)

\(315-115-105+25\)

\(=215\)

\(b.\)

\(888-\left(-333\right)-222+111\)

\(=888+333-222+111\)

\(=1110\)

\(c.\)

\(-97-15+44-35-12+98\)

\(=-17\)