Exercise

Python Operators

These exercises are designed to help you practice working with various operators in Python. Follow each step carefully and try to predict the output before running the code.

File Organization

We'll add a new directory called operators to your existing file structure. The updated structure will look like this:

csf101-python_exercises/
│
├── basics/
│   ├── numbers.py
│   ├── strings.py
│   └── booleans.py
│
├── data_structures/
│   ├── lists.py
│   └── dictionaries.py
│
└── operators/
    ├── arithmetic.py
    ├── assignment.py
    ├── comparison.py
    └── logical.py

Create a new directory called operators inside your csf101-python_exercises directory.

Exercise 1: Arithmetic Operators

File: operators/arithmetic.py

Create a new file called arithmetic.py in the operators directory and complete the following exercises in this file.

  1. Create two variables a and b with values 15 and 4 respectively.

    a, b = 15, 4
print(f"a = {a}, b = {b}")

    Expected output: a = 15, b = 4

  2. Perform addition, subtraction, multiplication, and division with these variables.

    print(f"Addition: {a + b}")
print(f"Subtraction: {a - b}")
print(f"Multiplication: {a * b}")
print(f"Division: {a / b}")

    Expected output:

    Addition: 19
Subtraction: 11
Multiplication: 60
Division: 3.75

  3. Use the modulus operator to find the remainder when a is divided by b.

    print(f"Modulus: {a % b}")

    Expected output: Modulus: 3

  4. Use the exponentiation operator to calculate a to the power of b.

    print(f"Exponentiation: {a ** b}")

    Expected output: Exponentiation: 50625

  5. Use floor division to divide a by b.

    print(f"Floor Division: {a // b}")

    Expected output: Floor Division: 3

Exercise 2: Assignment Operators

File: operators/assignment.py

Create a new file called assignment.py in the operators directory and complete the following exercises in this file.

  1. Create a variable x with an initial value of 10.

    x = 10
print(f"Initial x: {x}")

    Expected output: Initial x: 10

  2. Use the += operator to add 5 to x.

    x += 5
print(f"After x += 5: {x}")

    Expected output: After x += 5: 15

  3. Use the -= operator to subtract 3 from x.

    x -= 3
print(f"After x -= 3: {x}")

    Expected output: After x -= 3: 12

  4. Use the *= operator to multiply x by 2.

    x *= 2
print(f"After x *= 2: {x}")

    Expected output: After x *= 2: 24

  5. Use the /= operator to divide x by 4.

    x /= 4
print(f"After x /= 4: {x}")

    Expected output: After x /= 4: 6.0

Exercise 3: Comparison Operators

File: operators/comparison.py

Create a new file called comparison.py in the operators directory and complete the following exercises in this file.

  1. Create two variables a and b with values 10 and 5 respectively.

    a, b = 10, 5
print(f"a = {a}, b = {b}")

    Expected output: a = 10, b = 5

  2. Use comparison operators to compare a and b.

    print(f"a == b: {a == b}")
print(f"a != b: {a != b}")
print(f"a > b: {a > b}")
print(f"a < b: {a < b}")
print(f"a >= b: {a >= b}")
print(f"a <= b: {a <= b}")

    Expected output:

    a == b: False
a != b: True
a > b: True
a < b: False
a >= b: True
a <= b: False

  3. Create a variable c with value 10 and compare it with a.

    c = 10
print(f"a == c: {a == c}")

    Expected output: a == c: True

Exercise 4: Logical Operators

File: operators/logical.py

Create a new file called logical.py in the operators directory and complete the following exercises in this file.

  1. Create two boolean variables x and y.

    x = True
y = False
print(f"x = {x}, y = {y}")

    Expected output: x = True, y = False

  2. Use the and operator with x and y.

    print(f"x and y: {x and y}")

    Expected output: x and y: False

  3. Use the or operator with x and y.

    print(f"x or y: {x or y}")

    Expected output: x or y: True

  4. Use the not operator with x and y.

    print(f"not x: {not x}")
print(f"not y: {not y}")

    Expected output:

    not x: False
not y: True

Congratulations!

Remember to run each file separately to see the output of your exercises. You can do this by navigating to the appropriate directory in your terminal and running python filename.py (e.g., python arithmetic.py).