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5.6乘以69.32加138.64乘以0.05加693.2乘以0.43帮我用简便计算解答出来,并列出算式

题目详情
5.6乘以69.32加138.64乘以0.05加693.2乘以0.43
帮我用简便计算解答出来,并列出算式
▼优质解答
答案和解析
5.6×69.32+138.64×0.05+693.2×0.43=5.6×69.32+69.32×2×0.05+69.32×4.3=69.32×(5.6+2×0.05+4.3)=69.32×10=693.2