diff --git a/src/content/chapter0_basics/lesson05_ints/code.gleam b/src/content/chapter0_basics/lesson05_ints/code.gleam
index 708a444..4a9f94a 100644
--- a/src/content/chapter0_basics/lesson05_ints/code.gleam
+++ b/src/content/chapter0_basics/lesson05_ints/code.gleam
@@ -2,21 +2,21 @@ import gleam/int
 
 pub fn main() {
   // Int arithmetic
-  echo { 1 + 1 }
-  echo { 5 - 1 }
-  echo { 5 / 2 }
-  echo { 3 * 3 }
-  echo { 5 % 2 }
+  echo 1 + 1
+  echo 5 - 1
+  echo 5 / 2
+  echo 3 * 3
+  echo 5 % 2
 
   // Int comparisons
-  echo { 2 > 1 }
-  echo { 2 < 1 }
-  echo { 2 >= 1 }
-  echo { 2 <= 1 }
+  echo 2 > 1
+  echo 2 < 1
+  echo 2 >= 1
+  echo 2 <= 1
 
   // Equality works for any type
-  echo { 1 == 1 }
-  echo { 2 == 1 }
+  echo 1 == 1
+  echo 2 == 1
 
   // Standard library int functions
   echo int.max(42, 77)
diff --git a/src/content/chapter0_basics/lesson06_floats/code.gleam b/src/content/chapter0_basics/lesson06_floats/code.gleam
index 1a65b6a..d94d1b8 100644
--- a/src/content/chapter0_basics/lesson06_floats/code.gleam
+++ b/src/content/chapter0_basics/lesson06_floats/code.gleam
@@ -2,23 +2,23 @@ import gleam/float
 
 pub fn main() {
   // Float arithmetic
-  echo { 1.0 +. 1.5 }
-  echo { 5.0 -. 1.5 }
-  echo { 5.0 /. 2.5 }
-  echo { 3.0 *. 3.5 }
+  echo 1.0 +. 1.5
+  echo 5.0 -. 1.5
+  echo 5.0 /. 2.5
+  echo 3.0 *. 3.5
 
   // Float comparisons
-  echo { 2.2 >. 1.3 }
-  echo { 2.2 <. 1.3 }
-  echo { 2.2 >=. 1.3 }
-  echo { 2.2 <=. 1.3 }
+  echo 2.2 >. 1.3
+  echo 2.2 <. 1.3
+  echo 2.2 >=. 1.3
+  echo 2.2 <=. 1.3
 
   // Equality works for any type
-  echo { 1.1 == 1.1 }
-  echo { 2.1 == 1.2 }
+  echo 1.1 == 1.1
+  echo 2.1 == 1.2
 
   // Division by zero is not an error
-  echo { 3.14 /. 0.0 }
+  echo 3.14 /. 0.0
 
   // Standard library float functions
   echo float.max(2.0, 9.5)
diff --git a/src/content/chapter0_basics/lesson08_equality/code.gleam b/src/content/chapter0_basics/lesson08_equality/code.gleam
index ae65e81..547b999 100644
--- a/src/content/chapter0_basics/lesson08_equality/code.gleam
+++ b/src/content/chapter0_basics/lesson08_equality/code.gleam
@@ -1,4 +1,4 @@
 pub fn main() {
-  echo { 100 == 100 }
-  echo { 1.5 != 0.1 }
+  echo 100 == 100
+  echo 1.5 != 0.1
 }
diff --git a/src/content/chapter0_basics/lesson10_bools/code.gleam b/src/content/chapter0_basics/lesson10_bools/code.gleam
index e084863..891c337 100644
--- a/src/content/chapter0_basics/lesson10_bools/code.gleam
+++ b/src/content/chapter0_basics/lesson10_bools/code.gleam
@@ -2,10 +2,10 @@ import gleam/bool
 
 pub fn main() {
   // Bool operators
-  echo { True && False }
-  echo { True && True }
-  echo { False || False }
-  echo { False || True }
+  echo True && False
+  echo True && True
+  echo False || False
+  echo False || True
 
   // Bool functions
   echo bool.to_string(True)
diff --git a/src/content/chapter0_basics/lesson15_type_aliases/code.gleam b/src/content/chapter0_basics/lesson15_type_aliases/code.gleam
index 5eecedf..cc3dd31 100644
--- a/src/content/chapter0_basics/lesson15_type_aliases/code.gleam
+++ b/src/content/chapter0_basics/lesson15_type_aliases/code.gleam
@@ -6,5 +6,5 @@ pub fn main() {
   let two: Int = 2
 
   // UserId and Int are the same type
-  echo { one == two }
+  echo one == two
 }
diff --git a/src/content/chapter0_basics/lesson18_constants/code.gleam b/src/content/chapter0_basics/lesson18_constants/code.gleam
index 7a43abc..3676904 100644
--- a/src/content/chapter0_basics/lesson18_constants/code.gleam
+++ b/src/content/chapter0_basics/lesson18_constants/code.gleam
@@ -4,8 +4,8 @@ const floats = [1.0, 2.0, 3.0]
 
 pub fn main() {
   echo ints
-  echo { ints == [1, 2, 3] }
+  echo ints == [1, 2, 3]
 
   echo floats
-  echo { floats == [1.0, 2.0, 3.0] }
+  echo floats == [1.0, 2.0, 3.0]
 }
diff --git a/src/content/chapter3_data_types/lesson07_nil/code.gleam b/src/content/chapter3_data_types/lesson07_nil/code.gleam
index b69d654..a11f58a 100644
--- a/src/content/chapter3_data_types/lesson07_nil/code.gleam
+++ b/src/content/chapter3_data_types/lesson07_nil/code.gleam
@@ -7,5 +7,5 @@ pub fn main() {
   // let y: List(String) = Nil
 
   let result = io.println("Hello!")
-  echo { result == Nil }
+  echo result == Nil
 }
diff --git a/src/content/chapter3_data_types/lesson09_bit_arrays/code.gleam b/src/content/chapter3_data_types/lesson09_bit_arrays/code.gleam
index d437c3c..c62d9bf 100644
--- a/src/content/chapter3_data_types/lesson09_bit_arrays/code.gleam
+++ b/src/content/chapter3_data_types/lesson09_bit_arrays/code.gleam
@@ -1,7 +1,7 @@
 pub fn main() {
   // 8 bit int. In binary: 00000011
   echo <<3>>
-  echo { <<3>> == <<3:size(8)>> }
+  echo <<3>> == <<3:size(8)>>
 
   // 16 bit int. In binary: 0001100000000011
   echo <<6147:size(16)>>