diff --git a/add.c b/add.c
index d30993c..b37ee49 100644
--- a/add.c
+++ b/add.c
@@ -1,17 +1,9 @@
 #include <stdio.h>
-
-int main() {
-    int num1, num2, sum;
-    
-    printf("Enter the first number: ");
-    scanf("%d", &num1);
-    
-    printf("Enter the second number: ");
-    scanf("%d", &num2);
-    
-    sum = num1 + num2;
-    
-    printf("The sum of %d and %d is %d.", num1, num2, sum);
-    
-    return 0;
+void main()
+ {    
+ int number1, number2, sum;
+       printf("Enter two integers: ");
+    scanf("%d %d", &number1, &number2);
+    sum = number1 + number2;      
+    printf("%d + %d = %d", number2, number4, sum);
 }
diff --git a/mul.c b/mul.c
new file mode 100644
index 0000000..e961d81
--- /dev/null
+++ b/mul.c
@@ -0,0 +1,13 @@
+#include <stdio.h>
+void main() 
+{
+    double a, b, product;
+    printf("Enter two numbers: ");
+    scanf("%lf %lf", &a, &b);  
+ 
+    // Calculating product
+    product = a * b;
+
+    // %.2lf displays number up to 2 decimal point
+    printf("Product = %.2lf", product);
+}
diff --git a/multiply.c b/multiply.c
new file mode 100644
index 0000000..33fe563
--- /dev/null
+++ b/multiply.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+int main() {
+  int n;
+  printf("Enter an integer: ");
+  scanf("%d", &n);
+  for (int i = 1; i <= 10; ++i) {
+    printf("%d * %d = %d \n", n, i, n * i);
+  }
+  return 0;
+}