Question

Explain how to make six $9$'s equal to $100$.

Answer 1

Six $9$’s equal to $100$ can be expressed in the following ways

$9\times 9+9+9+9/9=100$

$99+(99/99)=100$

$(99+9/9)\times (9/9)=100$

$[99+(9/9\left)\right]+9–9=100$

$[9+(9/9]\times [9+(9/9)]=100$

$(999–99)/9=100$

$(99/9)\times 9+(9/9)=100$

$[99+(9/9\left)\right]/(9/9)=100$.

Hence, six $9$’s equal to $100$ can be expressed.