早教吧作业答案频道 -->数学-->
请问158*23/157怎么算33*69/162+69乘129/162简算
题目详情
请问158*23/157怎么算
33*69/162+69乘129/162简算
33*69/162+69乘129/162简算
▼优质解答
答案和解析
158*23/157
= (157+1)*23/157
= 157*23/157 + 23/157
= 23 + 23/157
= 23又 23/157
33*69/162 + 69*129 / 162
= 69/162 * (33+129)
= 69/162 * 162
= 69
= (157+1)*23/157
= 157*23/157 + 23/157
= 23 + 23/157
= 23又 23/157
33*69/162 + 69*129 / 162
= 69/162 * (33+129)
= 69/162 * 162
= 69
看了 请问158*23/157怎么...的网友还看了以下: