348*5720=199056019852400:248=80050
а)348*х
х=5720
348*5720=1990560
б)19852400/y
y=248
19852400/248=80050
348*5720=1990560
19852400:248=80050
а)348*х
х=5720
348*5720=1990560
б)19852400/y
y=248
19852400/248=80050