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a fost răspuns

1 calculati
e) (+21)+(-22)+(-23)+(+24)=
f) (+12)+(-11)+(+9)+(+7)=
g) -3+|--4+8|+|-3+5|=
h) -25+|-12+70-80|=

Răspuns :

e) 21-22-23+24=
=-1-23+24=
=-24+24=0
f) 12-11+9+7=
=1+9+7=17
g) -3+4+2=
=1+2=3
h) -25+|-58-80|=
=-25+|-138|=
=-25+138=113

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