How can you make 100 using six nines only?
Answers:
99 + 99/99
9*9=81
81+9=90
90+9=99
99+(9/9)=100
9 + 9 + (9 x 9) + (9/9) =100
9*9+9+9+(9/9)
Or 99+(9/9), with 4 nines, and then multiply by 9 and divide by 9, or add 9 and subtract 9.
99-9+9+9/9
(9+9/9)*(9+9/9)
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