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Basic Addition Lesson 4: Number 4

Here's an easy example:

4
+
1
=
5
 
        
+
  
=
          
 
   Magenta Box   Brown Box   Cyan Box   Maroon Box  plus     Teal Box  equals     Magenta Box   Brown Box   Cyan Box   Maroon Box   Teal Box

We start with four boxes, add one box, and now have five boxes.


Here's another example:

4
+
2
=
6
 
        
+
    
=
            
 
   DarkSlateBlue Box   DeepSkyBlue Box   Peru Box   GreenYellow Box  plus     DarkBlue Box   DarkMagenta Box  equals     DarkSlateBlue Box   DeepSkyBlue Box   Peru Box   GreenYellow Box   DarkBlue Box   DarkMagenta Box

We start with four boxes, add two boxes, and now have six boxes.


Try this problem.

4
+
3
=
 
        
+
      
=
              
 
   Olive Box   MediumTurquoise Box   DarkOliveGreen Box   RoyalBlue Box  plus     MediumOrchid Box   DarkTurquoise Box   Chartreuse Box  equals     Olive Box   MediumTurquoise Box   DarkOliveGreen Box   RoyalBlue Box   MediumOrchid Box   DarkTurquoise Box   Chartreuse Box

We start with four boxes, add three boxes, and now have seven boxes.


In order to do basic addition, you must memorize some equations but fear not: FoxyMath will help you! When you are finished with this lesson, you will know the following equations:

4 + 1 = 5
4 + 2 = 6
4 + 3 = 7
4 + 4 = 8
4 + 5 = 9
4 + 6 = 10
4 + 7 = 11
4 + 8 = 12
4 + 9 = 13
4 + 10 = 14
4 + 11 = 15
4 + 12 = 16


The following exercise will help you learn the above equations and what they mean. Please take your time: take whatever time you need to learn the material.

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