Ответ:
- \((4,5+3,7)\cdot0,2+1,6:0,8=8,2\cdot0,2+2=1,64+2=3,64\).
- \(7,2:(2,4-1,8)+3,5\cdot0,4=7,2:0,6+1,4=12+1,4=13,4\).
- \((6,3-2,9)\cdot0,5+4,8:1,2=3,4\cdot0,5+4=1,7+4=5,7\).
- \(12,6-(3,8+2,4)\cdot0,6=12,6-6,2\cdot0,6=12,6-3,72=8,88\).
Ответ: 1) 3,64; 2) 13,4; 3) 5,7; 4) 8,88.
