diff --git a/chapter10.tex b/chapter10.tex
index e282429..d56c639 100644
--- a/chapter10.tex
+++ b/chapter10.tex
@@ -36,10 +36,10 @@ Usually a signed representation is used,
 which means that both negative and positive
 numbers can be represented.
 A signed number of $n$ bits can contain any
-integer between $2^{n-1}$ and $2^{n-1}-1$.
+integer between $-2^{n-1}$ and $2^{n-1}-1$.
 For example, the \texttt{int} type in C++ is
 a signed type, and it can contain any
-integer between $2^{31}$ and $2^{31}-1$.
+integer between $-2^{31}$ and $2^{31}-1$.
 
 The first bit in a signed representation
 is the sign of the number (0 for nonnegative numbers