diff --git a/docs/ManualTests.md b/docs/ManualTests.md
index deb8111a..c48e51a6 100644
--- a/docs/ManualTests.md
+++ b/docs/ManualTests.md
@@ -124,7 +124,7 @@ Steps:
     m.	“( )" Parenthesis
 
 
-**All Calulators Test: Verify memory functions**
+**All Calculators Test: Verify memory functions**
 Steps:
 1.	Launch the "Calculator" app.
 2.	Navigate to "Standard" Calculator.
diff --git a/src/CalculatorUnitTests/MultiWindowUnitTests.cpp b/src/CalculatorUnitTests/MultiWindowUnitTests.cpp
index 15817303..03faf1bd 100644
--- a/src/CalculatorUnitTests/MultiWindowUnitTests.cpp
+++ b/src/CalculatorUnitTests/MultiWindowUnitTests.cpp
@@ -79,7 +79,7 @@ namespace CalculatorUnitTests
             }
         }
 
-        // Create 3 separate instances of Calulator in different modes
+        // Create 3 separate instances of Calculator in different modes
         TEST_METHOD(InitializeMultipleModeInstancesTest)
         {
             std::vector<StandardCalculatorViewModel^> viewModels(3);
@@ -584,7 +584,7 @@ namespace CalculatorUnitTests
             }
         }
 
-        // Perform calculations on 3 separate instances of Calcuator and verify that their Memory List items are maintained separately
+        // Perform calculations on 3 separate instances of Calculator and verify that their Memory List items are maintained separately
         TEST_METHOD(MultipleModesMemoryAddItemTest)
         {
             std::vector<StandardCalculatorViewModel^> viewModels(3);