6.6+0.6×20+0.×19 简便运算

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/17 00:51:51

6.6+0.6×20+0.×19 简便运算

6.6+0.6×20+0.6×19
=0.6×11+0.6×20+0.6×19
=0.6×(11+20+19)
=0.6×50
=30

6.6+0.6×20+0.6×19
=0.6×11+0.6×20+0.6×19
=0.6×(11+20+19)
=0.6×50
=30

赞同一楼和二楼的

6.6+0.6×20+0.6×19
=6.6+12+0.6x19
=0.6x(11+19)+12
=30