а) (2928-88):142=20
1)2928-88=2840
2)2840:142=20
б) (64+37)х91=9191
1)64+37=101
2)101х91=9191
3)??????????
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а) (2928-88):142=20
1)2928-88=2840
2)2840:142=20
б) (64+37)х91=9191
1)64+37=101
2)101х91=9191
3)??????????