（1）4.4+5.6×2.5÷5.6×2.5
=4.4+（5.6÷5.6）×（2.5×2.5）
=4.4+1×6.25
=4.4+6.25
=10.65；
（2）（3.8-7.7÷2.5）×2.8
=（3.8-3.08）×2.8
=0.72×2.8
=2.016；
（3）（7.5+7.5+7.5+7.5）×2.5
=（7.5×4）×2.5
=7.5×（4×2.5）
=7.5×10
=75；
（4）3.65×62+0.28×365+36.5
=3.65×62+28×3.65+3.65×10
=3.65×（62+28+10）
=3.65×100
=365；
（5）（49.5÷7.5+49.5÷2.5）÷0.01
=（6.6+19.8）÷0.01
=26.4÷0.01
=2640；
（6）[3.25-3.25÷（10.3+2.2）]×0.1
=[3.25-3.25÷12.5]×0.1
=[3.25-0.26]×0.1
=2.99×0.1
=0.299．