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Basic Addition Lesson 12: Number 12

Here's an easy example:

12
+
1
=
13
 
                        
+
  
=
                          
 
   SpringGreen Box   SandyBrown Box   DarkCyan Box   DarkOrchid Box   Gold Box   DarkGoldenrod Box   DarkMagenta Box   Khaki Box   DarkSeaGreen Box   DarkTurquoise Box   BlueViolet Box   SaddleBrown Box  plus     GreenYellow Box  equals     SpringGreen Box   SandyBrown Box   DarkCyan Box   DarkOrchid Box   Gold Box   DarkGoldenrod Box   DarkMagenta Box   Khaki Box   DarkSeaGreen Box   DarkTurquoise Box   BlueViolet Box   SaddleBrown Box   GreenYellow Box

We start with twelve boxes, add one box, and now have thirteen boxes.


Here's another example:

12
+
2
=
14
 
                        
+
    
=
                            
 
   CornflowerBlue Box   MediumSlateBlue Box   Chocolate Box   MediumBlue Box   DarkGreen Box   MediumVioletRed Box   Aquamarine Box   Blue Box   CadetBlue Box   Fuchsia Box   SkyBlue Box   Cyan Box  plus     DarkOrange Box   Pink Box  equals     CornflowerBlue Box   MediumSlateBlue Box   Chocolate Box   MediumBlue Box   DarkGreen Box   MediumVioletRed Box   Aquamarine Box   Blue Box   CadetBlue Box   Fuchsia Box   SkyBlue Box   Cyan Box   DarkOrange Box   Pink Box

We start with twelve boxes, add two boxes, and now have fourteen boxes.


Try this problem.

12
+
3
=
 
                        
+
      
=
                              
 
   SpringGreen Box   SandyBrown Box   DarkCyan Box   DarkOrchid Box   Gold Box   DarkGoldenrod Box   DarkMagenta Box   Khaki Box   DarkSeaGreen Box   DarkTurquoise Box   BlueViolet Box   SaddleBrown Box  plus     GreenYellow Box   DodgerBlue Box   Yellow Box  equals     SpringGreen Box   SandyBrown Box   DarkCyan Box   DarkOrchid Box   Gold Box   DarkGoldenrod Box   DarkMagenta Box   Khaki Box   DarkSeaGreen Box   DarkTurquoise Box   BlueViolet Box   SaddleBrown Box   GreenYellow Box   DodgerBlue Box   Yellow Box

We start with twelve boxes, add three boxes, and now have fifteen 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:

12 + 1 = 13
12 + 2 = 14
12 + 3 = 15
12 + 4 = 16
12 + 5 = 17
12+ 6 = 18
12 + 7 = 19
12 + 8 = 20
12 + 9 = 21
12 + 10 = 22
12 + 11 = 23
12 + 12 = 24


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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