diff --git a/ProjectEulerCS/Problems/Problem16.cs b/ProjectEulerCS/Problems/Problem16.cs
index bf77139..496aa2e 100644
--- a/ProjectEulerCS/Problems/Problem16.cs
+++ b/ProjectEulerCS/Problems/Problem16.cs
@@ -22,6 +22,7 @@
 */
 
 
+using System;
 using System.Numerics;
 
 
@@ -76,7 +77,7 @@ namespace ProjectEulerCS.Problems{
 
 			//Add up the individual characters of the string
 			for(int cnt = 0;cnt < numString.Length;++cnt){
-				sumOfElements += System.Convert.ToInt32(numString.Substring(cnt, 1));
+				sumOfElements += Convert.ToInt32(numString.Substring(cnt, 1));
 			}
 
 			//Stop the timer
diff --git a/ProjectEulerCS/Problems/Problem6.cs b/ProjectEulerCS/Problems/Problem6.cs
index 4599780..7808163 100644
--- a/ProjectEulerCS/Problems/Problem6.cs
+++ b/ProjectEulerCS/Problems/Problem6.cs
@@ -22,6 +22,9 @@
 */
 
 
+using System;
+
+
 namespace ProjectEulerCS.Problems{
 	public class Problem6 : Problem{
 		//Variables
@@ -52,7 +55,7 @@ namespace ProjectEulerCS.Problems{
 				if(!solved){
 					throw new Unsolved();
 				}
-				return System.Math.Abs(sumOfSquares - squareOfSum);
+				return Math.Abs(sumOfSquares - squareOfSum);
 			}
 		}
 
@@ -88,7 +91,7 @@ namespace ProjectEulerCS.Problems{
 			solved = true;
 
 			//Save the results
-			_result = "The difference between the sum of the squares and the square of the sum of all numbers from 1-100 is " + System.Math.Abs(sumOfSquares - squareOfSum);
+			_result = "The difference between the sum of the squares and the square of the sum of all numbers from 1-100 is " + Math.Abs(sumOfSquares - squareOfSum);
 		}
 		//Reset the problem so it can be run again
 		public override void Reset(){
diff --git a/ProjectEulerCS/Problems/Problem8.cs b/ProjectEulerCS/Problems/Problem8.cs
index 0749e1e..97d328e 100644
--- a/ProjectEulerCS/Problems/Problem8.cs
+++ b/ProjectEulerCS/Problems/Problem8.cs
@@ -44,6 +44,9 @@
 */
 
 
+using System;
+
+
 namespace ProjectEulerCS.Problems{
 	public class Problem8 : Problem{
 		//Variables
@@ -89,7 +92,7 @@ namespace ProjectEulerCS.Problems{
 
 			//Cycle through the string of numbers looking for the maximum product
 			for(int cnt = 12;cnt < NUMBER.Length;++cnt){
-				long currentProduct = System.Int64.Parse(NUMBER[cnt - 12].ToString()) * System.Int64.Parse(NUMBER[cnt - 11].ToString()) * System.Int64.Parse(NUMBER[cnt - 10].ToString()) * System.Int64.Parse(NUMBER[cnt - 9].ToString()) * System.Int64.Parse(NUMBER[cnt - 8].ToString()) * System.Int64.Parse(NUMBER[cnt - 7].ToString()) * System.Int64.Parse(NUMBER[cnt - 6].ToString()) * System.Int64.Parse(NUMBER[cnt - 5].ToString()) * System.Int64.Parse(NUMBER[cnt - 4].ToString()) * System.Int64.Parse(NUMBER[cnt - 3].ToString()) * System.Int64.Parse(NUMBER[cnt - 2].ToString()) * System.Int64.Parse(NUMBER[cnt - 1].ToString()) * System.Int64.Parse(NUMBER[cnt].ToString());
+				long currentProduct = Int64.Parse(NUMBER[cnt - 12].ToString()) * Int64.Parse(NUMBER[cnt - 11].ToString()) * Int64.Parse(NUMBER[cnt - 10].ToString()) * Int64.Parse(NUMBER[cnt - 9].ToString()) * Int64.Parse(NUMBER[cnt - 8].ToString()) * Int64.Parse(NUMBER[cnt - 7].ToString()) * Int64.Parse(NUMBER[cnt - 6].ToString()) * Int64.Parse(NUMBER[cnt - 5].ToString()) * Int64.Parse(NUMBER[cnt - 4].ToString()) * Int64.Parse(NUMBER[cnt - 3].ToString()) * Int64.Parse(NUMBER[cnt - 2].ToString()) * Int64.Parse(NUMBER[cnt - 1].ToString()) * Int64.Parse(NUMBER[cnt].ToString());
 
 				//Check if the product is greater than the current maximum
 				if(currentProduct > maxProduct){
diff --git a/ProjectEulerCS/Problems/Problem9.cs b/ProjectEulerCS/Problems/Problem9.cs
index b16b3b7..dc72426 100644
--- a/ProjectEulerCS/Problems/Problem9.cs
+++ b/ProjectEulerCS/Problems/Problem9.cs
@@ -22,6 +22,9 @@
 */
 
 
+using System;
+
+
 namespace ProjectEulerCS{
 	public class Problem9 : Problem{
 		//Variables
@@ -85,12 +88,12 @@ namespace ProjectEulerCS{
 			//Loop through all possible a's
 			while((a < 1000) && !found){
 				b = a + 1;	//b must be larget than a
-				c = System.Math.Sqrt((a * a) + (b * b));	//Compute the hyp
+				c = Math.Sqrt((a * a) + (b * b));	//Compute the hyp
 
 				//Loop through all possible b's for this a
 				while((a + b + c) < 1000){
 					++b;
-					c = System.Math.Sqrt((a * a) + (b * b));
+					c = Math.Sqrt((a * a) + (b * b));
 				}
 
 				//If the sum == 1000 you found the number, otherwise go to the next possible a
@@ -109,7 +112,7 @@ namespace ProjectEulerCS{
 			solved = true;
 
 			if(found){
-				_result = "The Pythagorean triplet is " + a + " + " + b + " + " + System.Math.Round(c) +
+				_result = "The Pythagorean triplet is " + a + " + " + b + " + " + Math.Round(c) +
 					"\nThe numbers' product is " + Product;
 			}
 			else{