Add appropriate operation symbols "+" - "×" △ or "()" between the following five 5S to make the equation hold 1.5 5 5 5 5=7 2.5 5 5 5 5=8 3.5 5 5 5 5=9 4.5 5 5 5 5=10

Add appropriate operation symbols "+" - "×" △ or "()" between the following five 5S to make the equation hold 1.5 5 5 5 5=7 2.5 5 5 5 5=8 3.5 5 5 5 5=9 4.5 5 5 5 5=10

5+5÷5+5÷5=7
5+5-(5+5)÷5=8
(5×5-5)÷5+5=9
5×(5÷5+5÷5)=10