简便运算行判过蚂带陪程如下闷蠢:7.2×0.58+0.42×7.2=7.2*(0.58+0.42)=7.2*1=7.2
7.2×0.58+0.42×7.2=7.2×(0.58+0.42)=7.2×1=7.2希望我的回橡腔答对您有帮助,有问题可瞎如空以追问磨瞎。满意请及时采纳,谢谢!
7.2×0.58+0.42×7.2=7.2x(毁磨0.58+0.42)=7.2x1=7.2希望能帮带亮到蠢余宽你!
原式=7.2*(0.58+0.42)=7.2*1=7.2