Question 78992

it is like this
Start with 1
Multiply by 5
Multiply by 5
Multiply by 5
Multiply by 5
Multiply by 5
Multiply by 5
Multiply by 5
Multiply by 5
Multiply by 5
Divide by 5
Divide by 5
Divide by 5
Divide by 5
Divide by 5
Divide by 5
Each time you divide by 5 it "undoes" one of the times that you multiplied by 5

nine minus six is three

You are really just doing this
Multiply by 5
Multiply by 5
Multiply by 5

That is five to the third power.