一.6.65-0.82-0.18+2.35
=（6.65+2.35）-（0.82+0.18）=9-1=8
二.2.37+4.9+1.63+16.1
=（2.37+1.63）+（4.9+16.1）=4+21=25
三.2.9*101
=2.9*（100+1）=2.9*100+2.9=292.9
四.4.9+0.1-4.9+0.1
=（4.9-4.9）+（0.1+0.1）=0.2
五.16-5.32-4.68
=16-（5.32+4.68）=16-10=6
六.1.25*64*0.25
=1.25*（8*4*2）*0.25=（1.25*8）*（4*0.25）*2=10*1*2=20
七.4.7*2.34-0.34*4.7
=4.7（2.34-0.34）=4.7*2=9.4
八.37.32-（20.2-2.68）
=37.32-20.2+2.68=(37.32+2.68)-20.2=40-20.2=19.8 一.6.65-0.82-0.18+2.35
=（6.65+2.35）-（0.82+0.18）=9-1=8
二.2.37+4.9+1.63+16.1
=（2.37+1.63）+（4.9+16.1）=4+21=25
三.2.9*101
=2.9*（100+1）=2.9*100+2.9=292.9
四.4.9+0.1-4.9+0.1
=（4.9-4.9）+（0.1+0.1）=0.2
五.16-5.32-4.68
=16-（5.32+4.68）=16-10=6
六.1.25*64*0.25
=1.25*（8*4*2）*0.25=（1.25*8）*（4*0.25）*2=10*1*2=20
七.4.7*2.34-0.34*4.7
=4.7（2.34-0.34）=4.7*2=9.4
八.37.32-（20.2-2.68）
=37.32-20.2+2.68=(37.32+2.68)-20.2=40-20.2=19.8