diff --git a/03-maxValue/index.js b/03-maxValue/index.js
index 80a0e79..9a077ba 100644
--- a/03-maxValue/index.js
+++ b/03-maxValue/index.js
@@ -1,5 +1,4 @@
 export function maxValue(values) {
   // implementar logica aqui
-  
-    return Math.max(null,values);
+  return Math.max.apply(null, values)
 }
diff --git a/06-sum/index.js b/06-sum/index.js
index ebc2ee1..26a322f 100644
--- a/06-sum/index.js
+++ b/06-sum/index.js
@@ -1,4 +1,10 @@
 export function sum(values) {
   // implementar logica aqui
+  var arr = values;
+  var soma = 0;
   
+  for (var i = 0; i < arr.length; i++) {
+    soma +=arr[i]
+  }
+  return soma;
 }
\ No newline at end of file