Learn Python Fast: Simple Calculator Tutorial (with explanation)
Tired of being confused by Python math basics?
In this video, I’ll show you how to make a simple Python calculator that can add and subtract, with a full explanation of every line of code.
This method is super beginner-friendly; no complicated stuff, just plain Python and a clear walkthrough of the syntax and logic.
Steps covered:
How to take input from the user
Using if statements to choose operations
Adding and subtracting numbers
Explaining the Python syntax so you understand what each line does
Perfect for beginners, learners, or anyone wanting to practice Python basics while building a small, useful program.
while True: # while loop
print("-----------")
print("Calculator")
print("-----------")
print("1. Add")
print("2. Subtract")
question = input("Pick an option: ")
if question == "1":
number1 = float(input("Enter your first number: ")) #int (integer) is number without decimals, float (float) is number but with decimals
number2 = float(input("Enter your second number: "))
print(f"The answer is {number1 + number2}")
elif question == "2":
number1 = float(input("Enter your first number: "))
number2 = float(input("Enter your second number:"))
print(f"The answer is {number1 - number2}")
else:
break
the again option
again = input("Do you want to try again (y/n): ")
if again == "y" or again == "Y":
continue
elif again == "n" or again == "N":
break
else: break
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