3.1.1 Exercise

Exercise 1: Basic Arithmetic Calculations

Objective: Practice using arithmetic operators to perform calculations.

Instructions:

1. Ask the user to enter two numbers.
2. Perform addition, subtraction, multiplication, and division on the numbers.
3. Display the results in a formatted message.

Example Output:

Enter first number: 12  
Enter second number: 4  
Sum: 16  
Difference: 8  
Product: 48  
Division: 3.0  

Exercise 2: Finding Remainder and Floor Division

Objective: Understand how the modulus (%) and floor division (//) operators work.

Instructions:

1. Ask the user to enter two numbers.
2. Calculate and print the quotient, remainder, and floor division result.

Example Output:

Enter dividend: 17  
Enter divisor: 4  
Quotient: 4.25  
Remainder: 1  
Floor Division: 4  

Exercise 3: Exponentiation and Operator Precedence

Objective: Learn how exponentiation (**) and operator precedence work.

Instructions:

1. Ask the user to enter a base number and an exponent.
2. Calculate the power result using **.
3. Evaluate and display the result of 5 + 2 * base ** exponent // 3 - 1.

Example Output:

Enter base number: 2  
Enter exponent: 3  
2 raised to the power of 3 is 8  
Expression result: 9  

Solutions

Exercise 1

Expected Solution:

num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))

print("Sum:", num1 + num2)
print("Difference:", num1 - num2)
print("Product:", num1 * num2)
print("Division:", num1 / num2)

Exercise 2

Expected Solution:

dividend = int(input("Enter dividend: "))
divisor = int(input("Enter divisor: "))

print("Quotient:", dividend / divisor)
print("Remainder:", dividend % divisor)
print("Floor Division:", dividend // divisor)

Exercise 3

Expected Solution:

base = int(input("Enter base number: "))
exponent = int(input("Enter exponent: "))

power_result = base ** exponent
print(f"{base} raised to the power of {exponent} is {power_result}")

expression_result = 5 + 2 * base ** exponent // 3 - 1
print("Expression result:", expression_result)