Calculating Numbers with Arithmetic Operators

In Python, you can perform basic arithmetic operations using + (addition), - (subtraction), * (multiplication), and / (division) operators.

Use the + operator. a + b represents the sum of a and b.

Use the - operator. a - b represents the value obtained by subtracting b from a.

Use the * operator. a * b represents the product of a and b.

Use the / operator, which always returns a float. a / b represents the value obtained by dividing a by b.

Let's look at a simple example to see how each operation works.

Copy
a = 10
b = 5

# Addition
print("Addition:", a + b)  # Output: 15

# Subtraction
print("Subtraction:", a - b)  # Output: 5

# Multiplication
print("Multiplication:", a * b)  # Output: 50

# Division
print("Division:", a / b)  # Output: 2.0

Just like in standard arithmetic, in Python, operations inside parentheses are performed first.

In addition, multiplication and division have higher precedence than addition and subtraction.

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a = 10
b = 5

print("Operator Precedence:", a + b * 2)  # Output: 20

print("Operator Precedence:", (a + b) * 2)  # Output: 30