1、 35%*9..9+0.035
=35%x9.9+35%x0.1
=35%x(9.9+0.1)
=35%x10
=3.5
2、 4.62+0.99
=4.62+(1-0.01)
=4.62+1-0.01
=5.61
3、 4*0.6+0.6/六分之一
=4x0.6+0.6x6
=0.6x(4+6)
=0.6x10
=6