Răspuns :

462 +216 =678

215 + 312 =527

721 + 137 =858

624 + 153=777

452 + 326=778

551 + 226=777

161 + 218 =379

324 + 125 =449

253 + 121 =374

462+216=678

215+312=527

721+137=858

624+153=777

452+326=778

161+218=379

324+125=449

253+121=374