Evaluate 1-(1/2)^-3

$1 - {(\frac{1}{2})}^{- 3}$

Step 1

Simplify each term.

Change the sign of the exponent by rewriting the base as its reciprocal.

$1 - 2^{3}$

Raise $2$ to the power of $3$ .

$1 - 1 \cdot 8$

Multiply $- 1$ by $8$ .

$1 - 8$

Step 2

Subtract $8$ from $1$ .

$- 7$