Предмет: Математика, автор: Ника120603

Во вторник почтальон разнес 15 писем,в среду 8 писем,а в четверг на 20 писем больше,чем в среду. Сколько по писем разнес почтальон за три дня?
Извините то,что пишу часто,просто с сестрой сидим и решаем задачи,а она во 2 классе,а я в 7 и не помню такие задачи вообще....

Ответы

Автор ответа: Катеночкин
0
20+8+8+15=51
так как в четверг на20 писем больше получается 20+8 затем добавляем среду +8 и вторник+15 в итоге51

Автор ответа: Валерия3455433230
0
1)15+8=23(п.)- разнёс во вторник и в среду
2)20+8=28(п.)- разнёс в четверг
3)23+28=51(п.)-разнёс за три дня
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Предмет: Математика, автор: 12345678897