5个5算成1,
5个5算成2
5个5算成3
5个5算成4
5个5算成5
5个5算成6
5个5算成7
5个5算成8
5个5算成9
5个5算成1,
5个5算成2
5个5算成3
5个5算成4
5个5算成5
5个5算成6
5个5算成7
5个5算成8
5个5算成9
5-[(5x5-5)/5]=1;
(5x5-5)/(5+5)=2;
5-(5/5)-(5/5)=3;
(5x5)/5-5/5=4;
5-[(5/5)-(5/5)]=5;
5+(5x5)/(5x5)=6;
5+(5/5)+(5/5)=7;
5+[5-(5+5)/5]=8;
5+[(5x5-5)/5]=9;
50个5 算成 10。20.30.40.50.60.70.80.90.
250
(5-5)*5+5/5=1
(5+5)÷5+5-5=2 5*5*5/(5*5)=3
(5+5+5+5)/5=4
5+5+5-5-5=5
(5*5)/(5*5)+5=6
5/5+5+5/5=7 (5+5+5)/5+5=8
(5*5-5)/5+5=9