计算：3.68×15.7-31.4+15.7×0.32=______．_数学解答

计算：3.68×15.7-31.4+15.7×0.32=______．

人气：344 ℃　时间：2020-01-28 04:43:15

解答

3.68×15.7-31.4+15.7×0.32
=15.7×（3.68+0.32）-31.4
=15.7×4-31.4
=31.4×2-31.4
=31.4
故答案为31.4