1 EASY 2+2+2+2+2+2+2 can also be rewritten as what in multiplication form? 2x77x214A and BNone of the above

 2 EASY 3+3+3+3+3 can be written as what in multiplication form?

 3 MEDIUM 4+4+4+4+4-4-4 can be written as what in multiplication form?

 4 MEDIUM What is the value of 5+5+5+5?

 5 HARD What is 3+3+3+3+1+1+1+1+5+5+5+5? 3631225337

 6 HARD Which one of the following equals to 2+4+6+8+...+100 ? 50502550250012751020

 7 HARD A really long time ago, this really mean teacher asked this super cool math kid named Gauss what the value of 1+2+3+4+5+...+98+99+100 was. But since Gauss was so cool he got it. Can you do it too? [ HINT: Gauss rearranged the numbers like so: (1+100)+(2+99)+(3+98)+... ]