diff --git a/Lesson2-AddMethod/src/AddMethod.java b/Lesson2-AddMethod/src/AddMethod.java
new file mode 100644
index 0000000..bbcd3bb
--- /dev/null
+++ b/Lesson2-AddMethod/src/AddMethod.java
@@ -0,0 +1,7 @@
+
+public class AddMethod {
+	public static void main(String[] args) {
+		int answer = 1+1;
+		System.out.println(" 1 + 1 = " + answer);
+	}
+}
diff --git a/Lesson3-Subtract/src/SubtractMethod.java b/Lesson3-Subtract/src/SubtractMethod.java
new file mode 100644
index 0000000..a7f068e
--- /dev/null
+++ b/Lesson3-Subtract/src/SubtractMethod.java
@@ -0,0 +1,7 @@
+
+public class SubtractMethod {
+	public static void main(String[] args) {
+		int answer = 100-20;
+		System.out.println(" 100 - 20 = "+answer);
+	}
+}
diff --git a/Lesson4-Multiplication/src/MultiplicationMethod.java b/Lesson4-Multiplication/src/MultiplicationMethod.java
new file mode 100644
index 0000000..0d0ad23
--- /dev/null
+++ b/Lesson4-Multiplication/src/MultiplicationMethod.java
@@ -0,0 +1,7 @@
+
+public class MultiplicationMethod {
+	public static void main(String[] args) {
+		int answer = 3 * 5;
+		System.out.println(" 3  x 5 = "+answer);
+	}
+}