分析:(1)先算260.3+39.6=299.6,原式變?yōu)?99.6-( 。=159,根據(jù)被減數(shù)、減數(shù)、差之間的關系,解答即可;
(2)先算32.25-19.23=31.86,原式變?yōu)?1.86-( )=19.23,根據(jù)被減數(shù)、減數(shù)、差之間的關系,解答即可;
(3)(4)兩題的解答方法同上.
解答:解:(1)260.3+39.6-159,
=299.6-159,
=140.6;
(2)32.25-19.23-0.39,
=31.86-19.23,
=12.63;
(3)65.36-32.1-9.68,
=33.26-9.68,
=23.58;
(4)95-35.85+9.87,
=59.15+9.87,
=69.02.
故答案為:140.6,12.63,23.58,69.02.
點評:此題根據(jù)被減數(shù)、減數(shù)、差之間的關系,進行列式解答.