简便计算:4.7×0.35+0.47×4.2+0.047×23.
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/16 22:55:22
简便计算:
4.7×0.35+0.47×4.2+0.047×23.
4.7×0.35+0.47×4.2+0.047×23.
4.7×0.35+0.47×4.2+0.047×23
=4.7×0.35+4.7×0.42+4.7×0.23
=4.7×(0.35+0.42+0.23)
=4.7×1
=4.7.
=4.7×0.35+4.7×0.42+4.7×0.23
=4.7×(0.35+0.42+0.23)
=4.7×1
=4.7.