diff --git a/book/numbers/chapter.tex b/book/numbers/chapter.tex
index 98918f9..e5122b5 100644
--- a/book/numbers/chapter.tex
+++ b/book/numbers/chapter.tex
@@ -88,7 +88,7 @@ magnitude of the desired number.
 Another item worth noting is that any even binary number will always
 have a 0 LSB and odd numbers will always have a 1 LSB.
 
-As is customary in decimal, leading zeroes are sometimes not shown 
+As is customary in decimal, leading zeros are sometimes not shown 
 for readability.
 
 The relationship between binary and hex values is also worth taking
@@ -149,7 +149,7 @@ $00011011_2$ represents the decimal value $27_{10}$.
 Conversion from binary to hex involves grouping the bits into
 sets of four and then performing the same summing process as 
 shown above.  If there is not a multiple of four bits then
-extend the binary to the left with zeroes to make it so.
+extend the binary to the left with zeros to make it so.
 
 Grouping the bits into sets of four and summing:
 
diff --git a/book/rv32/chapter.tex b/book/rv32/chapter.tex
index 1c8d0ba..6668de5 100644
--- a/book/rv32/chapter.tex
+++ b/book/rv32/chapter.tex
@@ -96,7 +96,7 @@ Zero extend {\em val} to the right.
 Some times a binary value is encoded such that a set of bits represented
 by {\em val} are used to represent the \acrshort{msb}s of some longer (more bits) 
 value.  
-In this case it is necessary to append zeroes to the right to convert \verb@val@ to 
+In this case it is necessary to append zeros to the right to convert \verb@val@ to 
 the longer value.
 
 \autoref{Figure:ZeroRightExtend} illustrates converting a 20--bit {\em val} to
@@ -570,7 +570,7 @@ Load Upper Immediate.
 \verb@rd@ $\leftarrow$ \verb@zr(imm)@
 
 Copy the immediate value into bits 31:12 of the destination register and
-place zeroes into bits 11:0.
+place zeros into bits 11:0.
 When XLEN is 64 or 128, the immediate value is sign--extended to the left.
 
 Instruction Format and Example:
@@ -992,7 +992,7 @@ Store Word
 \verb@m16(rs1+sx(imm))@ $\leftarrow$ \verb@rs2[31:0]@\\
 \verb@pc@ $\leftarrow$ \verb@pc+4@
 
-Store the 32-bit value in \verb@rs1@ into memory at address \verb@rs2+imm@.
+Store the 32-bit value in \verb@rs1@ into memory at address \verb@rs1+imm@.
 
 Encoding: