ришите пример 28,4*3,21+71,2*8,7=
28,4*3,21=91,164 71,2*8,7=619,44 91,164+619,44=710,604 28,4*3,21+71,2*8,7=710,604
1)28,4*3,21=91,164 2)71,2*8,7=619,44 3)91,164+619,44=710,604