Move only 2 matches to turn 999 into 100

Move only 2 matches to turn 999 into 100

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 7-2=8
2) Matchstick puzzle 3+4=14
3) Matchstick puzzle 1+4=65
4) Matchstick puzzle 5-7=8
5) Matchstick puzzle 999 into 100
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#puzzles #matches #riddles