diff --git a/src/main/duellist-spielesammlung-projekt.c b/src/main/duellist-spielesammlung-projekt.c
index 54fb0ca..75e49d3 100644
--- a/src/main/duellist-spielesammlung-projekt.c
+++ b/src/main/duellist-spielesammlung-projekt.c
@@ -427,13 +427,13 @@ int compare(int a, int b) {
     }
 }
 
-int exponent(int base, int exponent) {
-    if (exponent < 0) {
+int exponent(int base, int expo){
+    if (expo < 0) {
         printf("Negative Exponenten werden nicht unterstützt.\n");
         return 0;
     }
     int result = 1;
-    for (int i = 0; i < exponent; ++i) {
+    for (int i = 0; i < expo; ++i) {
         result *= base;
     }
     return result;
@@ -466,28 +466,28 @@ void playGame() {
     int totalQuestions = 5; // Anzahl der Fragen im Spiel
 
     for (int i = 0; i < totalQuestions; ++i) {
-        int num1 = generateRandomNumber(1, 10);
-        int num2 = generateRandomNumber(1, 10);
-        int operation = generateRandomNumber(1, 8);
+        int num1 = zufallszahl(1, 10);
+        int num2 = zufallszahl(1, 10);
+        int operation = zufallszahl(1, 8);
 
         int result;
         char operator;
 
         switch (operation) {
             case 1:
-                result = addition(num1, num2);
+                result = add(num1, num2);
                 operator = '+';
                 break;
             case 2:
-                result = subtraction(num1, num2);
+                result = minus(num1, num2);
                 operator = '-';
                 break;
             case 3:
-                result = multiplication(num1, num2);
+                result = mal(num1, num2);
                 operator = '*';
                 break;
             case 4:
-                result = division(num1, num2);
+                result = durch(num1, num2);
                 operator = '/';
                 break;
             case 5:
@@ -499,7 +499,7 @@ void playGame() {
                 operator = '=';
                 break;
             case 7:
-                result = exponentiation(num1, num2);
+                result = exponent(num1, num2);
                 operator = '^';
                 break;
             case 8:
diff --git a/src/test/test_duellist_spielesammlung_projekt.c b/src/test/test_duellist_spielesammlung_projekt.c
index d04e012..b40c9f9 100644
--- a/src/test/test_duellist_spielesammlung_projekt.c
+++ b/src/test/test_duellist_spielesammlung_projekt.c
@@ -453,7 +453,7 @@ void test_generateRandomNumber_withinValidRange(void)
     /* arrange */
 
     /* act */
-    int result = generateRandomNumber(1, 100);
+    int result = zufallszahl(1, 100);
 
     /* assert */
     TEST_ASSERT_TRUE(result >= 1 && result <= 100);
@@ -466,7 +466,7 @@ void test_addition(void)
     int b = 10;
 
     /* act */
-    int result = addition(a, b);
+    int result = add(a, b);
 
     /* assert */
     TEST_ASSERT_EQUAL_INT(15, result);
@@ -479,7 +479,7 @@ void test_subtraction(void)
     int b = 10;
 
     /* act */
-    int result = subtraction(a, b);
+    int result = minus(a, b);
 
     /* assert */
     TEST_ASSERT_EQUAL_INT(5, result);
@@ -493,7 +493,7 @@ void test_multiplication(void)
     int b = 10;
 
     /* act */
-    int result = multiplication(a, b);
+    int result = mal(a, b);
 
     /* assert */
     TEST_ASSERT_EQUAL_INT(50, result);
@@ -506,7 +506,7 @@ void test_division(void)
     int b = 3;
 
     /* act */
-    int result = division(a, b);
+    int result = durch(a, b);
 
     /* assert */
     TEST_ASSERT_EQUAL_INT(5, result);
@@ -519,7 +519,7 @@ void test_division_byZero_returnsZero(void)
     int num2 = 0;
 
     /* act */
-    int result = division(num1, num2);
+    int result = durch(num1, num2);
 
     /* assert */
     TEST_ASSERT_EQUAL_INT(0, result);
@@ -584,7 +584,7 @@ void test_exponentiation(void)
     int exponent = 3;
 
     /* act */
-    int result = exponentiation(base, exponent);
+    int result = exponent(base, expo);
 
     /* assert */
     TEST_ASSERT_EQUAL_INT(8, result);
@@ -597,7 +597,7 @@ void test_exponentiation_negativeExponent(void)
     int exponent = -3;
 
     /* act */
-    int result = exponentiation(base, exponent);
+    int result = exponent(base, expo);
 
     /* assert */
     TEST_ASSERT_EQUAL_INT(0, result);