# Simplify expressions using multiple index laws with integer base and negative powers

## Interactive practice questions

Evaluate $5^{-3}$53 .

Easy
Less than a minute
Evaluate $8^0\div4^{-3}$80÷​43 without the use of a calculator.
Evaluate $5\times4^{-2}+9^0$5×42+90 without the use of a calculator.
Evaluate $3^{-4}+3^{-1}$34+31 by using index laws, giving your answer as a simplified fraction.