Ответ:\(14.72+8.39-5.46=23.11-5.46=17.65\);\(25.8\cdot0.35=9.03\);\(9.63:0.9=10.7\);\(16.4-(3.8+2.15)=16.4-5.95=10.45\).Ответ: 17,65; 9,03; 10,7; 10,45.