Calculer \(78{,}6 + 2{,}8\).

Calculer \(2{,}14 - 1{,}6\).

Calculer \(9 \times 0{,}5\).

Calculer \(5{,}66 - 4{,}8\).

Calculer \(0{,}1 \times 2\).

Calculer \(7 \times 0{,}5\).

Calculer \(57{,}2 + 1{,}1\).

Calculer \(38{,}5 + 1{,}3\).

Calculer \(0{,}3 \times 0{,}9\).

Calculer \(6{,}8 - 3{,}32\).