diff --git a/ch1/ex1-1.raku b/ch1/ex1-1.raku
index 91205ad..f845803 100644
--- a/ch1/ex1-1.raku
+++ b/ch1/ex1-1.raku
@@ -4,6 +4,6 @@
   Is it a prime number?
   )
 
- say 137.WHAT;
+ say 137.WHAT; # ^name can be used also
  say 137.sqrt;
  say 137.is-prime;
diff --git a/ch1/ex1-2.raku b/ch1/ex1-2.raku
new file mode 100644
index 0000000..6ade207
--- /dev/null
+++ b/ch1/ex1-2.raku
@@ -0,0 +1,2 @@
+# What is the $*CWD variable, and what's its value on your system?
+say $*CWD;
diff --git a/ch1/ex1-3.raku b/ch1/ex1-3.raku
new file mode 100644
index 0000000..6ea105f
--- /dev/null
+++ b/ch1/ex1-3.raku
@@ -0,0 +1 @@
+say 'Hello World';