作业帮脱式计算.能简便的要简便运算.
来源：学生作业帮 编辑：拍题作业网作业帮 分类：数学作业 时间：2024/04/28 16:02:52
脱式计算.能简便的要简便运算.
2.87×〔6.3-2.3〕
54.7-45.3÷15
2.008×1999+2.008
10.8÷〖〔5.28-1.68〕×0.3〗0.5
3.69÷〔1.23×0.5〕
2.87×〔6.3-2.3〕
54.7-45.3÷15
2.008×1999+2.008
10.8÷〖〔5.28-1.68〕×0.3〗0.5
3.69÷〔1.23×0.5〕
2.87×〔6.3-2.3〕
=2.87×4.0
=11.48
54.7-45.3÷15
=54.7-3.02
=51.68
2.008×1999+2.008
=4013.992+2.008
=4016
10.8÷〖〔5.28-1.68〕×0.3〗0.5
=10.8÷（3.6×0.3）×0.5
=10.8÷1.08×0.5
=10×0.5
=5
3.69÷〔1.23×0.5〕
=3.69÷0.615
=6
.也许我误解lz的意思了.
=2.87×4.0
=11.48
54.7-45.3÷15
=54.7-3.02
=51.68
2.008×1999+2.008
=4013.992+2.008
=4016
10.8÷〖〔5.28-1.68〕×0.3〗0.5
=10.8÷（3.6×0.3）×0.5
=10.8÷1.08×0.5
=10×0.5
=5
3.69÷〔1.23×0.5〕
=3.69÷0.615
=6
.也许我误解lz的意思了.