问题
解答题
9.87-578-0.125.
答案
9.87-578-0.125,
=-(578-9.87)-0.125,
=-568.13-0.125,
=-(568.13+0.125),
=-568.255.
9.87-578-0.125.
9.87-578-0.125,
=-(578-9.87)-0.125,
=-568.13-0.125,
=-(568.13+0.125),
=-568.255.