6.39-(2.39-3)怎么简便计算？
发布网友
共5个回答
热心网友
6.39–(2.39+3)
=6.39–2.39–3
=4–3
=1
热心网友
解：6.39-（2.39+3）
=6.39-2.39-3
=4-3
=1
热心网友
按四则混合运算即可，
6.39-(2.39十3)
=6.39-5.39
=1
热心网友
将括号拆开，等于
6.39-(2.39+3)
=6.39-2.39-3
=4-3
=1
热心网友
6.39-(2.39+3)
=6.39-2.39-3
=(6.39-2.39)-3
=4-3
=1
