feat: Intro primitives

src/main.rs

@@ -2,23 +2,39 @@ fn main() {
     intro_to_u();
 }
 
-
-// function to encapsulate all integers
 fn intro_to_u() {
     let sum_result: u8 = sum(5, 10);
-    println!("the sum result is: {}", sum_result);   
+    println!("The sum is {}", sum_result);
+
+    let subtract: u8 = subtract(15, 10);
+    println!("The subtraction is {}", subtract);
+
+    let divide: u8 = divide(15, 10);
+    println!("The division is {}", divide);
 
+    let multiply: u8 = multiply(15, 10);
+    println!("The multiplication is {}", multiply);
 
+    let module: u8 = modulo(15, 10);
+    println!("The modulo is {}", module);
 }
 
 fn sum(x: u8, y: u8) -> u8 {
-    x + y // implicit return
-//    return x + y; // explicit return
+    x + y
 }
 
+fn subtract(x:u8, y: u8) -> u8 {
+    x - y
+}
 
-// subtract
-// multiplication
-// division
+fn divide(x:u8, y: u8) -> u8 {
+    x / y
+}
 
+fn multiply(x:u8, y: u8) -> u8 {
+    x * y
+}
 
+fn modulo(x:u8, y: u8) -> u8 {
+    x % y
+}