diff --git a/Section11/89-1.go b/Section11/89-1.go
new file mode 100644
index 0000000..e463c57
--- /dev/null
+++ b/Section11/89-1.go
@@ -0,0 +1,21 @@
+/*
+Coding Exercise #1
+
+Using a composite literal declare and initialize
+a slice of type string with 3 elements.
+
+Iterate over the slice and print each element in
+the slice and its index.
+*/
+
+package main
+
+import "fmt"
+
+func main() {
+	countries := []string{"Romania", "Brazil", "Germany"}
+	for i, v := range countries {
+		fmt.Printf("Index: %d, Element: %q\n", i, v)
+	}
+
+}
diff --git a/Section11/89-2.go b/Section11/89-2.go
new file mode 100644
index 0000000..dfa9e6a
--- /dev/null
+++ b/Section11/89-2.go
@@ -0,0 +1,45 @@
+/*
+Coding Exercise #2
+
+There are some errors in the following Go program. Try to identify the errors,
+change the code and run the program without errors.
+
+    package main
+
+    import "fmt"
+
+    func main() {
+        mySlice := []float64{1.2, 5.6}
+
+        mySlice[2] = 6
+
+        a := 10
+        mySlice[0] = a
+
+        mySlice[3] = 10.10
+
+        mySlice = append(mySlice, a)
+
+        fmt.Println(mySlice)
+
+    }
+*/
+package main
+
+import "fmt"
+
+func main() {
+	mySlice := []float64{1.2, 5.6}
+
+	mySlice[1] = 6
+
+	a := 10
+	mySlice[0] = float64(a)
+
+	mySlice[1] = 10.10
+
+	mySlice = append(mySlice, float64(a))
+
+	fmt.Println(mySlice)
+
+}
diff --git a/Section11/89-3.go b/Section11/89-3.go
new file mode 100644
index 0000000..641a91b
--- /dev/null
+++ b/Section11/89-3.go
@@ -0,0 +1,17 @@
+/*
+Coding Exercise #3
+
+1. Declare a slice called nums with three float64 numbers.
+
+2. Append the value 10.1 to the slice
+
+3. In one statement append to the slice the values: 4.1,  5.5 and 6.6
+
+4. Print out the slice
+
+5. Declare a slice called n with two float64 values
+
+6. Append n to nums
+
+7. Print out the nums slice
+*/