diff --git a/aulas/02/x10const.c b/aulas/02/x10const.c
new file mode 100644
index 0000000..aa818ff
--- /dev/null
+++ b/aulas/02/x10const.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+#define MULT 10 
+
+int main(void){
+	int num =5;
+
+	printf("%d x 10 = %d\n", num, num * MULT);
+	return 0;
+}