Arithmetic operators in C Sharp (C#) - Mini Project: Build & Apply

Arithmetic Operators in C#

📖 Scenario: You are helping a small shop calculate prices and discounts using simple math. You will use arithmetic operators to add, subtract, multiply, and divide numbers.

🎯 Goal: Build a C# program that uses arithmetic operators to calculate the total price, discount amount, and final price after discount.

📋 What You'll Learn

Create variables with exact names and values for prices and discount rate

Use arithmetic operators +, -, *, / correctly

Print the final calculated values exactly as instructed

💡 Why This Matters

🌍 Real World

Calculating prices, discounts, and totals is common in shopping apps and billing systems.

💼 Career

Understanding arithmetic operators is essential for any programming job that involves calculations or data processing.

1

Create initial price variables

Create two double variables called price1 and price2 with values 15.50 and 24.30 respectively.

C Sharp (C#)

# Your code here

Need a hint?

Use double type for decimal numbers and assign the exact values.

2

Add a discount rate variable

Create a double variable called discountRate and set it to 0.10 (which means 10%).

C Sharp (C#)

double price1 = 15.50;
double price2 = 24.30;
# Your code here

Need a hint?

Remember to use double and assign the exact value 0.10.

3

Calculate total price and discount amount

Create a double variable called totalPrice that adds price1 and price2. Then create a double variable called discountAmount that multiplies totalPrice by discountRate.

C Sharp (C#)

double price1 = 15.50;
double price2 = 24.30;
double discountRate = 0.10;
# Your code here

Need a hint?

Use + to add prices and * to calculate discount.

4

Calculate final price and print results

Create a double variable called finalPrice that subtracts discountAmount from totalPrice. Then print totalPrice, discountAmount, and finalPrice each on its own line using Console.WriteLine.

C Sharp (C#)

double price1 = 15.50;
double price2 = 24.30;
double discountRate = 0.10;
double totalPrice = price1 + price2;
double discountAmount = totalPrice * discountRate;
# Your code here

Need a hint?

Use - to subtract and Console.WriteLine to print each value on a new line.