38+175+62的简便运算
问题描述:
38+175+62的简便运算
答
38+62+175
100+175
=275
答
38×45+45×62 =45×(38+62) =45÷100 =4500 等于108810 38×45+45×62 =(38+62)x62 =100x62 =6200
答
38+175+62
=(38+62)+175
=100+175
=275
答
38+62=100
100+175=275