=18[110-10×(72-9×7)]
=18(110-10×9)
=18(110-90)
=18×20
=360
Răspuns:
360
Explicație pas cu pas:
18{110-10×[9×8-9×(15-8)]} =
18{110-10×[9×8-9×7]} =
18{110-10×[72-63]} =
18{110-10×9} =
18{110-90} =
18x20=
