12 мальчиков и 14 девочек ремонтировали библиотечные книги.каждая девочка отремонтировала по 2 книги,а каждый мальчик по 5 книг.сколько всего книг отремонтировали мальчики и девочки вместе?
vika16122004
3
25.09.2019 13:20
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12×5=60 книг отремонтировали мальчики
28+60=88 книг вместе
14*2=28(девочек)
60+28=88(всего)