早教吧 育儿知识 作业答案 考试题库 百科 知识分享

1.25*5.6+2.25*4.4用脱失计算怎样才能用到5.6+4.4进行脱算

题目详情
1.25*5.6+2.25*4.4用脱失计算 怎样才能用到5.6+4.4进行脱算
▼优质解答
答案和解析
1.25*5.6+2.25*4.4
=1.25*5.6+(1+1.25)*4.4
=1.25*5.6+1.25*4.4+4.4
=1.25*(5.6+4.4)+4.4
=1.25*10+4.4
=12.5+4.4
=16.9