Răspuns :
423+389-364=
812-364= 448
867-569+488=
298+488= 786
587-379+158=
208+158= 366
193+485-589=
678-589= 89
812-364= 448
867-569+488=
298+488= 786
587-379+158=
208+158= 366
193+485-589=
678-589= 89