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..18c9e55 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 +3,88 @@
 
 public class NumberUtilities {
     public static String getEvenNumbers(int start, int stop) {
-        return null;
+
+        StringBuilder even = new StringBuilder();
+
+
+        if (start %2 != 0){
+
+            start += 1;
+
+        }
+
+        for (int i = start; i < stop; i += 2){
+
+            even.append(i);
+        }
+
+        return even.toString();
     }
 
 
     public static String getOddNumbers(int start, int stop) {
-        return null;
+
+        StringBuilder odd = new StringBuilder();
+
+        if (start %2 == 0){
+
+            start -= 1;
+
+        }
+
+        for (int i = start; i < stop; i += 2){
+
+            odd.append(i);
+        }
+
+        return odd.toString();
     }
 
 
     public static String getSquareNumbers(int start, int stop, int step) {
-        return null;
+
+        StringBuilder square  = new StringBuilder();
+
+        for (int i = start; i < stop; i += step)  {
+
+            int sqrRoot = (int) Math.pow(i,2);
+            square.append(sqrRoot);
+        }
+
+        return square.toString();
+
     }
 
 
     public static String getRange(int start, int stop, int step) {
-        return null;
+
+        StringBuilder range = new StringBuilder();
+
+        for (int i = start; i < stop; i += step){
+
+             range.append(i);
+        }
+
+        return range.toString();
+
     }
 
 
     public static String getExponentiations(int start, int stop, int step, int exponent) {
-        return null;
+
+        StringBuilder expon = new StringBuilder();
+
+        for (int i = start; i < stop; i += step){
+
+            int exponVar = exponent;
+
+            int startExpon = (int) Math.pow(i, exponVar);
+
+            expon.append(startExpon);
+
+        }
+
+        return expon.toString();
+
     }
 }
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..0fdb5e6 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 +2,30 @@
 
 public class TableUtilities {
     public static String getSmallMultiplicationTable() {
-        return null;
+
+        return getMultiplicationTable(5);
     }
 
     public static String getLargeMultiplicationTable() {
-        return null;
+
+        return getMultiplicationTable(10);
     }
 
     public static String getMultiplicationTable(int tableSize) {
-        return null;
+
+        StringBuilder getSmol = new StringBuilder();
+
+        for (int r = 1; r <= tableSize; r++){
+
+            for(int c = 1; c <= tableSize; c++){
+
+                getSmol.append(String.format("%3d |", r*c));
+
+            }
+
+            getSmol.append("\n");
+        }
+
+        return getSmol.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..49ab5e4 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 +3,35 @@
 public class TriangleUtilities {
 
     public static String getTriangle(int numberOfRows) {
-        return null;
+
+        String result = "";
+
+        for (int iteration = 1; iteration < numberOfRows; iteration++) {
+            result += getRow(iteration) +  "\n";
+        }
+
+        return result;
     }
 
     public static String getRow(int numberOfStars) {
-        return null;
+
+        String getRow = "";
+
+        for (int row = 0; row < numberOfStars; row++) {
+
+            getRow += "*";
+        }
+
+        return getRow;
+
     }
 
     public static String getSmallTriangle() {
-        return null;
+        return getTriangle(5);
     }
 
     public static String getLargeTriangle() {
-        return null;
+
+        return getTriangle(10);
     }
 }
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..5ce91f7 100644
--- a/src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java
+++ b/src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java
@@ -51,7 +51,7 @@ public void testGetRange2() {
     @Test
     public void testGetEvenNumbers() {
         // : Given
-        String expected = "5791113151719";
+        String expected = "681012141618";
         int start = 5;
         int stop = 20;
 
@@ -65,7 +65,7 @@ public void testGetEvenNumbers() {
     @Test
     public void testGetOddNumbers() {
         // : Given
-        String expected = "681012141618";
+        String expected = "5791113151719";
         int start = 5;
         int stop = 20;
         int step = 5;