Вычислите: 2,34 × 2,6; 1,32 × 5,2; 2,24 × 2,6; 5,29 × 2,5; 1,98 × 4,2; 1,65 × 2,6; 2,61 × 2,1; 3,45 × 3,2; 5,19 × 6,3.

1. \(2{,}34 \times 2{,}6 = 2{,}34 \times 26 : 10 = 60{,}84 : 10 = 6{,}084\).
2. \(1{,}32 \times 5{,}2 = 1{,}32 \times 52 : 10 = 68{,}64 : 10 = 6{,}864\).
3. \(2{,}24 \times 2{,}6 = 2{,}24 \times 26 : 10 = 58{,}24 : 10 = 5{,}824\).
4. \(5{,}29 \times 2{,}5 = 5{,}29 \times 25 : 10 = 132{,}25 : 10 = 13{,}225\).
5. \(1{,}98 \times 4{,}2 = 1{,}98 \times 42 : 10 = 83{,}16 : 10 = 8{,}316\).
6. \(1{,}65 \times 2{,}6 = 1{,}65 \times 26 : 10 = 42{,}9 : 10 = 4{,}29\).
7. \(2{,}61 \times 2{,}1 = 2{,}61 \times 21 : 10 = 54{,}81 : 10 = 5{,}481\).
8. \(3{,}45 \times 3{,}2 = 3{,}45 \times 32 : 10 = 110{,}4 : 10 = 11{,}04\).
9. \(5{,}19 \times 6{,}3 = 5{,}19 \times 63 : 10 = 327{,}0 : 10 = 32{,}7\).

Ответ: 6,084; 6,864; 5,824; 13,225; 8,316; 4,29; 5,481; 11,04; 32,7.