Turn the wrong equation into correct | Matchstick puzzle 1-5=3 

I was completely stumped by this last puzzle , but maybe you've already figured it out ? Please share your knowledge in the comments below !
You will see answer of these puzzles :-
1) Matchstick puzzle 1+6=9
2) Matchstick puzzle 1+3=2
3) Matchstick puzzle 1+8=16
4) Matchstick puzzle 3+4=6
5) Matchstick puzzle 1-5=3
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#puzzles #matches #riddles