问题
解答题
怎样简便怎样算.
1.73×3.5+3.5×4.27
3.36×2.5×0.4.
答案
(1)1.73×3.5+3.5×4.27,
=(1.73+4.27)×3.5,
=6×3.5,
=21;
(2)3.36×2.5×0.4,
=3.36×(2.5×0.4),
=3.36×1,
=3.36.
怎样简便怎样算.
1.73×3.5+3.5×4.27
3.36×2.5×0.4.
(1)1.73×3.5+3.5×4.27,
=(1.73+4.27)×3.5,
=6×3.5,
=21;
(2)3.36×2.5×0.4,
=3.36×(2.5×0.4),
=3.36×1,
=3.36.