diff --git a/index.js b/index.js
index bb4ed6f..68adea5 100644
--- a/index.js
+++ b/index.js
@@ -18,10 +18,35 @@ function potencia(a, b) {
 	return Math.pow(a, b);
 }
 
+function dobra(a) {
+	return a * 2;
+}
+
+function triplica(a) {
+	return a * 3;
+}
+
+function adiciona100(a) {
+	return a + 100;
+}
+
+function adiciona200(a) {
+	return a + 200;
+}
+
+function adiciona300(a) {
+	return a + 300;
+}
+
 module.exports = {
 	soma,
 	multiplicacao,
 	subtracao,
 	potencia,
 	divisao,
+	adiciona100,
+	adiciona200,
+	adiciona300,
+	dobra,
+	triplica,
 };
diff --git a/index.test.js b/index.test.js
index 6d61bd0..c43d3c7 100644
--- a/index.test.js
+++ b/index.test.js
@@ -4,6 +4,11 @@ const {
 	divisao,
 	multiplicacao,
 	potencia,
+	adiciona100,
+	adiciona200,
+	adiciona300,
+	dobra,
+	triplica,
 } = require("./index.js");
 const { deepStrictEqual } = require("assert");
 const { test, describe } = require("node:test");
@@ -18,16 +23,40 @@ describe("Operacoes basicas", () => {
 	test("teste da funcao soma", () => {
 		deepStrictEqual(30, soma(15, 15));
 	});
+
 	test("teste da funcao multiplicacao", () => {
 		deepStrictEqual(16, multiplicacao(4, 4));
 	});
+
 	test("teste da funcao divisao", () => {
 		deepStrictEqual(6, divisao(30, 5));
 	});
+
 	test("teste da funcao subtracao", () => {
 		deepStrictEqual(75, subtracao(100, 25));
 	});
+
 	test("teste da funcao potencia", () => {
 		deepStrictEqual(8, potencia(2, 3));
 	});
+
+	test("teste da funcao adiciona100", () => {
+		deepStrictEqual(110, adiciona100(10));
+	});
+
+	test("teste da funcao adiciona200", () => {
+		deepStrictEqual(250, adiciona200(50));
+	});
+
+	test("teste da funcao adiciona300", () => {
+		deepStrictEqual(400, adiciona300(100));
+	});
+
+	test("teste da funcao dobra", () => {
+		deepStrictEqual(4, dobra(2));
+	});
+
+	test("teste da funcao triplica", () => {
+		deepStrictEqual(30, triplica(10));
+	});
 });