diff --git a/calculator.c b/calculator.c
new file mode 100644
index 0000000..d1fda5d
--- /dev/null
+++ b/calculator.c
@@ -0,0 +1,20 @@
+#include<stdio.h>
+#include<conio.h>
+#include<stdlib.h>
+
+void main(){
+  float num1,num2,result;
+  int opt;
+  scanf("%f %f",&num1,&num2);
+  printf("1.Addition");
+  printf("2.Subtraction");
+  printf("3.Multiplication");
+  printf("4.Divison");
+  scanf("%d",&opt);
+  switch(opt){
+  case 1:printf("%f",num1+num2);
+  case 2:printf("%f",num1-num2);
+  case 3:printf("%f",num1*num2);
+  case 4:printf("%f"num1/num2);
+  }
+}