3()3()3()3=5填運算符號或括弧. 還有3()3()3()3=7,3()3()3()3=2,3()3()3()3=4,3()3()3()3=6,3()3()3()3=8怎麼寫,快點回我!這是工作!

3()3()3()3=5填運算符號或括弧. 還有3()3()3()3=7,3()3()3()3=2,3()3()3()3=4,3()3()3()3=6,3()3()3()3=8怎麼寫,快點回我!這是工作!


3+3-(3/3)=5 3+3-3+3=6 3+3+(3/3)=7 3x3-3/3=8 3/3+3/3=2



要使51()這個數同時有因數2.3.5,()裏能填?


0,要被5整除,個位只能是0或者5



51因數有什莫呢.


51因數有1,3,17,51