问题
解答题
100.5×27-0.5×27.
答案
100.5×27-0.5×27,
=(100+0.5)×27-0.5×27,
=100×27+0.5×27-0.5×27,
=100×27,
=2700.
或(100.5-0.5)×27,
=100×27,
=2700.
100.5×27-0.5×27.
100.5×27-0.5×27,
=(100+0.5)×27-0.5×27,
=100×27+0.5×27-0.5×27,
=100×27,
=2700.
或(100.5-0.5)×27,
=100×27,
=2700.