123×456÷789÷456×789÷123=_.
问题描述:
123×456÷789÷456×789÷123=______.
答
123×456÷789÷456×789÷123,
=(123÷123)×(456÷456)×(789÷789),
=1×1×1,
=1;
故答案为:1.