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Basic Addition Lesson 12: Number 12

Here's an easy example:

12
+
1
=
13
 
                        
+
  
=
                          
 
   DarkCyan Box   Sienna Box   Maroon Box   Lavender Box   MediumPurple Box   MediumAquamarine Box   RoyalBlue Box   DarkTurquoise Box   GreenYellow Box   Olive Box   PowderBlue Box   DarkGoldenrod Box  plus     SteelBlue Box  equals     DarkCyan Box   Sienna Box   Maroon Box   Lavender Box   MediumPurple Box   MediumAquamarine Box   RoyalBlue Box   DarkTurquoise Box   GreenYellow Box   Olive Box   PowderBlue Box   DarkGoldenrod Box   SteelBlue Box

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


Here's another example:

12
+
2
=
14
 
                        
+
    
=
                            
 
   Wheat Box   CornflowerBlue Box   Green Box   Purple Box   MediumSeaGreen Box   LimeGreen Box   Violet Box   DarkGreen Box   Aqua Box   BlueViolet Box   Plum Box   Thistle Box  plus     Turquoise Box   SandyBrown Box  equals     Wheat Box   CornflowerBlue Box   Green Box   Purple Box   MediumSeaGreen Box   LimeGreen Box   Violet Box   DarkGreen Box   Aqua Box   BlueViolet Box   Plum Box   Thistle Box   Turquoise Box   SandyBrown Box

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


Try this problem.

12
+
3
=
 
                        
+
      
=
                              
 
   DarkCyan Box   Sienna Box   Maroon Box   Lavender Box   MediumPurple Box   MediumAquamarine Box   RoyalBlue Box   DarkTurquoise Box   GreenYellow Box   Olive Box   PowderBlue Box   DarkGoldenrod Box  plus     SteelBlue Box   Chocolate Box   Cyan Box  equals     DarkCyan Box   Sienna Box   Maroon Box   Lavender Box   MediumPurple Box   MediumAquamarine Box   RoyalBlue Box   DarkTurquoise Box   GreenYellow Box   Olive Box   PowderBlue Box   DarkGoldenrod Box   SteelBlue Box   Chocolate Box   Cyan 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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