8.6x5.7+4.3x4.3x2 巧算就巧算无补充_数学解答

8.6x5.7+4.3x4.3x2 巧算
就巧算无补充

人气：427 ℃　时间：2020-04-13 06:59:51

解答

8.6x5.7+4.3x4.3x2
=8.6x5.7+4.3x2x4.3
=8.6x5.7+8.6x4.3
=8.6x（5.7+4.3）
=8.6x10
=86