Lateral Thinking: Math Brainteasers

Here are a few brain teasers in mathematics that requires you to think creatively.

Add 1 continuous line in each question to make the following correct:

1. V-IV=IV
2. 1+2=3
3. 5+5+5=550
4. IX=6
5. 5105=4.55

Shift 1 digit to make the following correct:

6. 62-63=1