Предмет: Математика, автор: dima20031

287 288 291 помогите

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Автор ответа: Gjz12345

291. а) 1) 540+460=1000 2) 200:2=100 3) 100×1000=100000 4) 100000:10=10000 б) 1) 200:2=100 2)100×540=54000 3) 460:10=46 4) 54000+46=54046 в) 1)460:10=46 2)540+46=586 3)200:2=100 4)100×586=58600

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