Răspuns :
5×12=60 (sertare)
60×6=360 (mingi de tenis)
60×11=660 (mingi de ping pong)
360+660=1020 (mingi)
60×6=360 (mingi de tenis)
60×11=660 (mingi de ping pong)
360+660=1020 (mingi)
12×5=60 (sertare)60×6=360 (mingi tenis
60×11=660mingi pinpong.
360+660=1020 (total mingi)
60×11=660mingi pinpong.
360+660=1020 (total mingi)