Предмет: Математика, автор: маман

в трех школах 1945 учеников.в 1 и 2 вместе 1225,а во 2 и 3 1300 учеников.сколько учеников в каждой школе.?реши и проверь решение

Ответы

Автор ответа: alina2012

0

1945-1225=720 в 3 ей

1300-720=580во 2 ой

1945-(720+580)=645 в 1 ой

проверка:645+580+720=1945 учеников

Автор ответа: triolana

0

1)сколько учеников в третьей школе?

1945-1225=720

2)сколько учеников во второй школе?

1300-720=580

3)сколько учеников в первой школе?

1225-580=645

проверка: 720+580+645=1945

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