diff --git a/src/main/java/io/zipcoder/microlabs/mastering_loops/NumberUtilities.java b/src/main/java/io/zipcoder/microlabs/mastering_loops/NumberUtilities.java
index 5a742c4..e4371ab 100644
--- a/src/main/java/io/zipcoder/microlabs/mastering_loops/NumberUtilities.java
+++ b/src/main/java/io/zipcoder/microlabs/mastering_loops/NumberUtilities.java
@@ -3,26 +3,84 @@
 
 public class NumberUtilities {
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+        StringBuilder evenNumbers = new StringBuilder();
+        for (int count = start; count < stop; count++) {
+            if (count % 2 == 0) {
+                evenNumbers.append(count);
+
+            }
+
+        }
+
+        return evenNumbers.toString();
     }
 
 
     public static String getOddNumbers(int start, int stop) {
-        return null;
+
+        StringBuilder oddNumbers = new StringBuilder();
+        for (int count = start; count < stop; count++) {
+            if (count % 2 == 1) {
+                oddNumbers.append(count);
+
+            }
+
+        }
+
+        return oddNumbers.toString();
     }
 
 
     public static String getSquareNumbers(int start, int stop, int step) {
-        return null;
+        StringBuilder squaredNumbers = new StringBuilder();
+        for (int count = start; count < stop; count += step) {
+
+            squaredNumbers.append(count * count);
+
+
+        }
+
+        return squaredNumbers.toString();
     }
 
 
     public static String getRange(int start, int stop, int step) {
-        return null;
+        StringBuilder rangeNumbers = new StringBuilder();
+        for (int count = start; count < stop; count += step) {
+
+            rangeNumbers.append(count);
+
+
+        }
+
+        return rangeNumbers.toString();
     }
 
 
     public static String getExponentiations(int start, int stop, int step, int exponent) {
-        return null;
+        StringBuilder expoNumbers = new StringBuilder();
+
+        for (int count = start; count < stop; count += step) {
+            int exp = count;
+            for (int count2 = 1; count2 < exponent; count2++) {
+                exp = exp * count;
+
+            }
+            expoNumbers.append(exp);
+
+
+        }
+
+        return expoNumbers.toString();
+    }
+
+    public static String getRange(int stop) {
+        String result = NumberUtilities.getRange(0, stop, 1);
+        return result;
+    }
+
+    public static String getRange(int start, int stop) {
+        String result = NumberUtilities.getRange(start, stop, 1);
+        return result;
     }
-}
+}
\ No newline at end of file
diff --git a/src/main/java/io/zipcoder/microlabs/mastering_loops/TableUtilities.java b/src/main/java/io/zipcoder/microlabs/mastering_loops/TableUtilities.java
index e27a826..a906a6e 100644
--- a/src/main/java/io/zipcoder/microlabs/mastering_loops/TableUtilities.java
+++ b/src/main/java/io/zipcoder/microlabs/mastering_loops/TableUtilities.java
@@ -2,14 +2,48 @@
 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+        StringBuilder table = new StringBuilder();
+        for (int count = 1; count <= 5; count++) {
+            for (int count2 = 1; count2 <= 5; count2++) {
+                String a = String.format("%3d |", count * count2);
+                table.append(a);
+
+            }
+            table.append("\n");
+
+        }
+
+        return table.toString();
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+        StringBuilder table = new StringBuilder();
+        for (int count = 1; count <= 10; count++) {
+            for (int count2 = 1; count2 <= 10; count2++) {
+                String a = String.format("%3d |", count * count2);
+                table.append(a);
+
+            }
+            table.append("\n");
+
+        }
+
+        return table.toString();
     }
 
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+        StringBuilder table = new StringBuilder();
+        for (int count = 1; count <= tableSize; count++) {
+            for (int count2 = 1; count2 <= tableSize; count2++) {
+                String a = String.format("%3d |", count * count2);
+                table.append(a);
+
+            }
+            table.append("\n");
+
+        }
+
+        return table.toString();
     }
 }
+
diff --git a/src/main/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilities.java b/src/main/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilities.java
index 0c7cd35..16792e1 100644
--- a/src/main/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilities.java
+++ b/src/main/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilities.java
@@ -3,18 +3,47 @@
 public class TriangleUtilities {
 
     public static String getTriangle(int numberOfRows) {
-        return null;
+        StringBuilder triangle = new StringBuilder();
+        for (int count = 1; count < numberOfRows; count++) {
+            for (int count2 = 0; count2 < count; count2++) {
+                triangle.append("*");
+
+            }
+            triangle.append("\n");
+        }
+        return triangle.toString();
     }
 
-    public static String getRow(int numberOfStars) {
-        return null;
+   public static String getRow(int numberOfStars) {
+        StringBuilder row = new StringBuilder();
+        for (int count = 0; count < numberOfStars; count++) {
+            row.append("*");
+        }
+
+        return row.toString();
     }
 
     public static String getSmallTriangle() {
-        return null;
+        StringBuilder triangle = new StringBuilder();
+        for (int count = 1; count < 5; count++) {
+            for (int count2 = 0; count2 < count; count2++) {
+                triangle.append("*");
+
+            }
+            triangle.append("\n");
+        }
+        return triangle.toString();
     }
 
     public static String getLargeTriangle() {
-        return null;
+        StringBuilder triangle = new StringBuilder();
+        for (int count = 1; count < 11; count++) {
+            for (int count2 = 0; count2 < count; count2++) {
+                triangle.append("*");
+
+            }
+            triangle.append("\n");
+        }
+        return triangle.toString();
     }
 }
diff --git a/src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java b/src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java
index e579b43..f407190 100644
--- a/src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java
+++ b/src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java
@@ -35,6 +35,31 @@ public void testGetRange2() {
         Assert.assertEquals(expected, actual);
     }
 
+    @Test
+    public void testGetRange3() {
+        // : Given
+        String expected = "012345678910";
+        int stop = 11;
+
+        // : When
+        String actual = NumberUtilities.getRange(stop);
+
+        // : Then
+        Assert.assertEquals(expected, actual);
+    }
+    @Test
+    public void testGetRange4() {
+        // : Given
+        String expected = "012345678910111213141516171819";
+        int start = 0;
+        int stop = 20;
+
+        // : When
+        String actual = NumberUtilities.getRange(start, stop);
+
+        // : Then
+        Assert.assertEquals(expected, actual);
+    }
 
 
 
@@ -51,7 +76,7 @@ public void testGetRange2() {
     @Test
     public void testGetEvenNumbers() {
         // : Given
-        String expected = "5791113151719";
+        String expected = "681012141618";
         int start = 5;
         int stop = 20;
 
@@ -65,7 +90,7 @@ public void testGetEvenNumbers() {
     @Test
     public void testGetOddNumbers() {
         // : Given
-        String expected = "681012141618";
+        String expected = "5791113151719";
         int start = 5;
         int stop = 20;
         int step = 5;
diff --git a/src/test/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilitiesTest.java b/src/test/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilitiesTest.java
index 47846c2..5986adb 100644
--- a/src/test/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilitiesTest.java
+++ b/src/test/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilitiesTest.java
@@ -53,7 +53,8 @@ public void testGetLargeTriangle() {
                 "******\n" +
                 "*******\n" +
                 "********\n" +
-                "*********\n";
+                "*********\n" +
+                "**********\n";
         String actual = TriangleUtilities.getLargeTriangle();
         Assert.assertEquals(expected, actual);
     }