(3.52:1.1+6.2)*(7.2-4.62:2.2)
1) 3.52:1.1=3.2 2) 3.2+6.2=9.4 3)4.62:2.2=2.1 4) 7.2-2.1=5.1 5) 9.4•5.1=47.94