(1)[8.5-(3.6+3.6)]÷2.6=[8.5-7.2]÷2.6=1.3÷2.6=0.5;(2)10.1×87=(10+0.1)×87=10×87+0.1×87=870+8.7=878.7;(3)1.4×[(7.5+38.4)÷0.9]=1.4×[45.9÷0.9]=1.4×51=71.4.