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Basic Addition Lesson 12: Number 12

Here's an easy example:

12
+
1
=
13
 
                        
+
  
=
                          
 
   Wheat Box   BurlyWood Box   SandyBrown Box   Aquamarine Box   Teal Box   MediumSpringGreen Box   Goldenrod Box   Violet Box   HotPink Box   DarkSeaGreen Box   DarkOrchid Box   Yellow Box  plus     MidnightBlue Box  equals     Wheat Box   BurlyWood Box   SandyBrown Box   Aquamarine Box   Teal Box   MediumSpringGreen Box   Goldenrod Box   Violet Box   HotPink Box   DarkSeaGreen Box   DarkOrchid Box   Yellow Box   MidnightBlue Box

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


Here's another example:

12
+
2
=
14
 
                        
+
    
=
                            
 
   BlueViolet Box   Indigo Box   MediumVioletRed Box   MediumPurple Box   Thistle Box   Tan Box   DarkBlue Box   DarkSlateBlue Box   MediumSeaGreen Box   DarkCyan Box   SkyBlue Box   MediumOrchid Box  plus     LimeGreen Box   SpringGreen Box  equals     BlueViolet Box   Indigo Box   MediumVioletRed Box   MediumPurple Box   Thistle Box   Tan Box   DarkBlue Box   DarkSlateBlue Box   MediumSeaGreen Box   DarkCyan Box   SkyBlue Box   MediumOrchid Box   LimeGreen Box   SpringGreen Box

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


Try this problem.

12
+
3
=
 
                        
+
      
=
                              
 
   Wheat Box   BurlyWood Box   SandyBrown Box   Aquamarine Box   Teal Box   MediumSpringGreen Box   Goldenrod Box   Violet Box   HotPink Box   DarkSeaGreen Box   DarkOrchid Box   Yellow Box  plus     MidnightBlue Box   Olive Box   DarkGoldenrod Box  equals     Wheat Box   BurlyWood Box   SandyBrown Box   Aquamarine Box   Teal Box   MediumSpringGreen Box   Goldenrod Box   Violet Box   HotPink Box   DarkSeaGreen Box   DarkOrchid Box   Yellow Box   MidnightBlue Box   Olive Box   DarkGoldenrod 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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