diff --git a/algorithms/math/Addition_of_Two_Hexadecimal.py b/algorithms/math/Addition_of_Two_Hexadecimal.py
new file mode 100644
index 0000000..743151f
--- /dev/null
+++ b/algorithms/math/Addition_of_Two_Hexadecimal.py
@@ -0,0 +1,24 @@
+# Credit      : LyFromQixing a.k.a QueenLy
+# Date        : 12 November 2021
+# Description : A program that accepts two hexadecimal digits of exactly two digits long, performs an addition, and writes the result in two hexadecimal digits
+
+hex_char = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"]
+
+def hex_to_dec(string):
+  idx = 0
+  while (hex_char[idx] != string[0]):
+    idx += 1
+  result = idx*16
+  idx = 0
+  while (hex_char[idx] != string[1]):
+    idx += 1
+  result += idx
+  return result
+
+def dec_to_hex(x):
+  return hex_char[x//16] + hex_char[x%16]
+
+A = input("Insert A: ")
+B = input("Insert B: ")
+hex_result = dec_to_hex(hex_to_dec(A) + hex_to_dec(B))
+print(A, "+", B, "=", hex_result)
diff --git a/algorithms/math/pascal_matrix.py b/algorithms/math/pascal_matrix.py
new file mode 100644
index 0000000..b4a4efa
--- /dev/null
+++ b/algorithms/math/pascal_matrix.py
@@ -0,0 +1,21 @@
+# Credit      : LyFromQixing a.k.a QueenLy
+# Date        : 12 November 2021
+# Description : A program that accepts N input and writes a Pascal's triangular matrix of size N*N.
+
+def pascal_matrix(N):
+
+  # Creating Pascal's Triangular Matrix
+  matrix = [[1 for i in range(N)] for j in range(N)]
+  for i in range(1, N):
+    for j in range(1, N):
+      matrix[i][j] = (matrix[i-1][j] + matrix[i][j-1])
+
+  # Showing matrix
+  for i in range(N):
+    print()
+    for j in range(N):
+      print(matrix[i][j], end=" ")
+
+N = int(input("Insert N: "))
+
+pascal_matrix(N)