diff --git a/src/main/java/LabWork/DozorovaLabWork/DozorovaLabWorkApplication.java b/src/main/java/LabWork/DozorovaLabWork/DozorovaLabWorkApplication.java
index b831a99..e14f455 100644
--- a/src/main/java/LabWork/DozorovaLabWork/DozorovaLabWorkApplication.java
+++ b/src/main/java/LabWork/DozorovaLabWork/DozorovaLabWorkApplication.java
@@ -3,6 +3,7 @@ package LabWork.DozorovaLabWork;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 @SpringBootApplication
@@ -14,8 +15,34 @@ public class DozorovaLabWorkApplication {
 	}
 
 	@GetMapping("/")
-	public String Hello()
-	{
+	public String Hello() {
 		return "Hello, user";
 	}
+
+	@GetMapping("/sum")
+	public String Sum(@RequestParam(required = false, defaultValue = "0") float first,
+					   @RequestParam(required = false, defaultValue = "0") float second) {
+		return Float.toString(first + second);
+	}
+
+	@GetMapping("/ras")
+	public String Ras(@RequestParam(required = false, defaultValue = "0") float first,
+					   @RequestParam(required = false, defaultValue = "0") float second) {
+		return Float.toString(first - second);
+	}
+
+	@GetMapping("/pros")
+	public String Pros(@RequestParam(required = false, defaultValue = "1") float first,
+						@RequestParam(required = false, defaultValue = "1") float second) {
+		return Float.toString(first * second);
+	}
+	@GetMapping("/del")
+	public String Del(@RequestParam(required = false, defaultValue = "1") float first,
+					  @RequestParam(required = false, defaultValue = "1") float second) {
+		if(second == 0)
+		{
+			return null;
+		}
+		return Float.toString(first/second);
+	}
 }