Ответ:\(240\times3=720\).\(320\times2=640\).\(900:300=3\).\(400:400=1\).\(130\times5=650\).\(150\times5=750\).\(800:400=2\).\(500:50=10\).\(320\times3=960\).\(330\times3=990\).\(100:50=2\).\(300:30=10\).