diff --git a/09_Day_Higher_order_functions/09_day_higher_order_functions.md b/09_Day_Higher_order_functions/09_day_higher_order_functions.md
index 3c8a619..c09e0a3 100644
--- a/09_Day_Higher_order_functions/09_day_higher_order_functions.md
+++ b/09_Day_Higher_order_functions/09_day_higher_order_functions.md
@@ -97,7 +97,7 @@ const sumArray = arr => {
   const callBack = function(element) {
     sum += element
   }
-  numbers.forEach(callback)
+  arr.forEach(callback)
   return sum
 
 }
@@ -115,7 +115,7 @@ const numbers = [1, 2, 3, 4]
 ​
 const sumArray = arr => {
   let sum = 0
-  numbers.forEach(function(element) {
+  arr.forEach(function(element) {
     sum += element
   })
   return sum
diff --git a/11_Day_Destructuring_and_spreading/11_day_destructuring_and_spreading.md b/11_Day_Destructuring_and_spreading/11_day_destructuring_and_spreading.md
index 5f0e896..d33a37e 100644
--- a/11_Day_Destructuring_and_spreading/11_day_destructuring_and_spreading.md
+++ b/11_Day_Destructuring_and_spreading/11_day_destructuring_and_spreading.md
@@ -57,7 +57,7 @@ Destructuring is a way to unpack arrays, and objects and assigning to a distinct
 
 ```js
   const names = ['Asabeneh', 'Brook', 'David', 'John']
-  let [firstPerson, secondPerson, thirdPerson, fourth Person] = names
+  let [firstPerson, secondPerson, thirdPerson, fourthPerson] = names
 
   console.log(firstName, secondPerson,thirdPerson, fourthPerson)
 ```
@@ -209,7 +209,7 @@ const rectangle = {
   height: 10,
   area: 200
 }
-let { width: w, heigh: h, area: a, perimeter: p } = rectangle
+let { width: w, height: h, area: a, perimeter: p } = rectangle
 
 console.log(w, h, a, p)
 ```
@@ -226,7 +226,7 @@ const rectangle = {
   height: 10,
   area: 200
 }
-let { width, heigh, area, perimeter = 60 } = rectangle
+let { width, height, area, perimeter = 60 } = rectangle
 
 console.log(width, height, area, perimeter) //20 10 200 60
 //Lets modify the object:width to 30 and perimeter to 80
@@ -239,7 +239,7 @@ const rectangle = {
   area: 200,
   perimeter: 80
 }
-let { width, heigh, area, perimeter = 60 } = rectangle
+let { width, height, area, perimeter = 60 } = rectangle
 console.log(width, height, area, perimeter) //20 10 200 80
 ```