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Basic Addition Lesson 12: Number 12

Here's an easy example:

12
+
1
=
13
 
                        
+
  
=
                          
 
   Indigo Box   Empty Box   MediumSlateBlue Box   Lavender Box   DarkOrchid Box   SaddleBrown Box   Olive Box   CadetBlue Box   Plum Box   MediumBlue Box   Teal Box   SlateBlue Box  plus     DarkMagenta Box  equals     Indigo Box   Empty Box   MediumSlateBlue Box   Lavender Box   DarkOrchid Box   SaddleBrown Box   Olive Box   CadetBlue Box   Plum Box   MediumBlue Box   Teal Box   SlateBlue Box   DarkMagenta Box

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


Here's another example:

12
+
2
=
14
 
                        
+
    
=
                            
 
   HotPink Box   Orchid Box   ForestGreen Box   Peru Box   Violet Box   DarkGoldenrod Box   OliveDrab Box   MediumSpringGreen Box   Sienna Box   GreenYellow Box   DeepSkyBlue Box   PowderBlue Box  plus     DarkOliveGreen Box   DarkCyan Box  equals     HotPink Box   Orchid Box   ForestGreen Box   Peru Box   Violet Box   DarkGoldenrod Box   OliveDrab Box   MediumSpringGreen Box   Sienna Box   GreenYellow Box   DeepSkyBlue Box   PowderBlue Box   DarkOliveGreen Box   DarkCyan Box

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


Try this problem.

12
+
3
=
 
                        
+
      
=
                              
 
   Indigo Box   Empty Box   MediumSlateBlue Box   Lavender Box   DarkOrchid Box   SaddleBrown Box   Olive Box   CadetBlue Box   Plum Box   MediumBlue Box   Teal Box   SlateBlue Box  plus     DarkMagenta Box   DeepPink Box   BurlyWood Box  equals     Indigo Box   Empty Box   MediumSlateBlue Box   Lavender Box   DarkOrchid Box   SaddleBrown Box   Olive Box   CadetBlue Box   Plum Box   MediumBlue Box   Teal Box   SlateBlue Box   DarkMagenta Box   DeepPink Box   BurlyWood 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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