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Basic Addition Lesson 4: Number 4

Here's an easy example:

4
+
1
=
5
 
        
+
  
=
          
 
   Plum Box   DarkGreen Box   RosyBrown Box   YellowGreen Box  plus     ForestGreen Box  equals     Plum Box   DarkGreen Box   RosyBrown Box   YellowGreen Box   ForestGreen Box

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


Here's another example:

4
+
2
=
6
 
        
+
    
=
            
 
   SteelBlue Box   LimeGreen Box   Turquoise Box   Chocolate Box  plus     Fuchsia Box   DeepPink Box  equals     SteelBlue Box   LimeGreen Box   Turquoise Box   Chocolate Box   Fuchsia Box   DeepPink Box

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


Try this problem.

4
+
3
=
 
        
+
      
=
              
 
   MediumVioletRed Box   DarkOliveGreen Box   CadetBlue Box   Goldenrod Box  plus     Cyan Box   Tan Box   MediumTurquoise Box  equals     MediumVioletRed Box   DarkOliveGreen Box   CadetBlue Box   Goldenrod Box   Cyan Box   Tan Box   MediumTurquoise 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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