(5-5)×5×5=0
(5-×5)÷(5×5)=1
5÷5+5÷5=2
(5+5+5)÷5=3
5+5+5-5=10
5×(5+5÷5)=30
(5+5)×(5+5)=100
5×(5+5×5)=150