diff --git a/src/addition.c b/src/addition.c
index 2db8d35..6b17097 100644
--- a/src/addition.c
+++ b/src/addition.c
@@ -111,11 +111,22 @@ float addition_float(float number1, float number2) {
     return num3.number.floating;
 }
 
+// reading sign out of an integer (double number)
+
 unsigned long long sign_double(unsigned long long a) {
     if (a & 0x8000000000000000) return 1;
     else return 0;
 }
 
+// reading precision out of an integer (double number)
+
 unsigned long long precision_double(unsigned long long a) {
     return a & 0x000fffffffffffff;
+}
+
+// reading exponent out of an integer (double number)
+
+unsigned long long exponent_double(unsigned long long number) {
+    unsigned long long exponent = 0x7ff0000000000000;
+    return (number & exponent) >> 52;
 }
\ No newline at end of file
diff --git a/src/addition.h b/src/addition.h
index e02a55a..20a8068 100644
--- a/src/addition.h
+++ b/src/addition.h
@@ -27,4 +27,6 @@ unsigned long long sign_double(unsigned long long a);
 
 unsigned long long precision_double(unsigned long long a);
 
+unsigned long long exponent_double(unsigned long long number);
+
 #endif // ADDITION_H
\ No newline at end of file