diff --git a/mathgenerator/funcs/__init__.py b/mathgenerator/funcs/__init__.py
index 83702eb..bf9803e 100644
--- a/mathgenerator/funcs/__init__.py
+++ b/mathgenerator/funcs/__init__.py
@@ -84,3 +84,5 @@ from .compoundInterestFunc import *
 from .deciToHexaFunc import *
 from .percentageFunc import *
 from .celsiustofahrenheit import *
+from .arithmeticProgressionSumFunc import *
+from .arithmeticProgressionTermFunc import *
diff --git a/mathgenerator/funcs/arithmeticProgressionSumFunc.py b/mathgenerator/funcs/arithmeticProgressionSumFunc.py
index ca2ada3..d7e5589 100644
--- a/mathgenerator/funcs/arithmeticProgressionSumFunc.py
+++ b/mathgenerator/funcs/arithmeticProgressionSumFunc.py
@@ -1,5 +1,6 @@
 from .__init__ import *
 
+
 def arithmeticProgressionSumFunc (maxd = 100, maxa = 100, maxn = 100):
     d = random.randint (-1 * maxd, maxd)
     a1 = random.randint (-1 * maxa, maxa)
diff --git a/mathgenerator/funcs/arithmeticProgressionTermFunc.py b/mathgenerator/funcs/arithmeticProgressionTermFunc.py
index f6662d5..9905b2b 100644
--- a/mathgenerator/funcs/arithmeticProgressionTermFunc.py
+++ b/mathgenerator/funcs/arithmeticProgressionTermFunc.py
@@ -1,5 +1,6 @@
 from .__init__ import *
 
+
 def arithmeticProgressionTermFunc (maxd = 100, maxa = 100, maxn = 100):
     d = random.randint (-1 * maxd, maxd)
     a1 = random.randint (-1 * maxa, maxa)
@@ -9,4 +10,4 @@ def arithmeticProgressionTermFunc (maxd = 100, maxa = 100, maxn = 100):
     apString = str(a1) +', ' + str(a2) +', ' + str(a3) + ' ... '
     problem = 'Find the term number ' + str(n) + ' of the AP series: ' + apString
     solution = a1  + ((n-1)*d)
-    return problen, solution
+    return problem, solution
diff --git a/mathgenerator/mathgen.py b/mathgenerator/mathgen.py
index f9ef504..1e9b4d7 100644
--- a/mathgenerator/mathgen.py
+++ b/mathgenerator/mathgen.py
@@ -275,4 +275,4 @@ arithmeticProgressionTerm = Generator ("AP Term Calculation", 82,
 
 arithmeticProgressionSum = Generator ("AP Sum Calculation", 83,
                                       "Find the sum of first n terms of the AP series: a1, a2, a3 ...",
-                                      "Sum", arithmeticProgressionSumFunc)
\ No newline at end of file
+                                      "Sum", arithmeticProgressionSumFunc)