5.6×0.65+0.35=5.6*0.65+1-0.65=4.6*0.65+1=(5-0.4)*0.65+1=3.25-0.26+1=4.25-0.26=3.99
先算乘除再算加减5.6乘以0.65等于3.643.64加0.35等于3.99