reworked summ

calc.py

@@ -14,21 +14,25 @@ def main():
             print(KeyError("Incorrect"))
             main()
 def summ():
-    print("Enter number(s) to multuplicate, enter spase to finish calculating")
-    total = 0
+    print("Enter number(s) to summ, enter spase to finish calculating")
+    try:
+        total = float(input("Enter First number \n"))
+    except ValueError:
+        print("Enter a valid number")
+        return
     while True:
-        num_input = input()
+        num_input = input("Enter numbers to summ\n")
         if num_input == " " or num_input == "":
-            print (f"Total summ = {total}")
+            print(total)
             main()
         try:
             number = float(num_input)
-            total += number
+            total -= number
             print(f"Total summ = {total}")
         except ValueError:
             print("Error, enter correct number")
 def minus():
-    print("Enter number(s) to multuplicate, enter spase to finish calculating")
+    print("Enter number(s) to minus, enter spase to finish calculating")
     try:
         total = float(input("Enter First number \n"))
     except ValueError: