## Answer :

A negative exponent only means

"Put all of this in the denominator, and make the exponent positive."

So (any number)^negative power =

1 / (the same number)^(the same power but not negative) .

The first few problems on that sheet:

1). 5^-3 = 1 / 5^3

2). 6^-10 = 1 / 6^10

3). (-2)^-5 = 1 / (-2)^5

Got it ? You can do the rest of them now in about 2 minutes.