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Basic Addition Lesson 10: Number 10

Here's an easy example:

10
+
1
=
11
 
                    
+
  
=
                      
 
   Navy Box   DarkTurquoise Box   MediumSpringGreen Box   DarkOrchid Box   BlueViolet Box   MediumTurquoise Box   Olive Box   Teal Box   CornflowerBlue Box   Plum Box  plus     DodgerBlue Box  equals     Navy Box   DarkTurquoise Box   MediumSpringGreen Box   DarkOrchid Box   BlueViolet Box   MediumTurquoise Box   Olive Box   Teal Box   CornflowerBlue Box   Plum Box   DodgerBlue Box

We start with ten boxes, add one box, and now have eleven boxes.


Here's another example:

10
+
2
=
12
 
                    
+
    
=
                        
 
   Thistle Box   MediumAquamarine Box   Brown Box   BurlyWood Box   MidnightBlue Box   MediumPurple Box   DeepSkyBlue Box   Indigo Box   Lavender Box   MediumVioletRed Box  plus     Pink Box   DarkSlateBlue Box  equals     Thistle Box   MediumAquamarine Box   Brown Box   BurlyWood Box   MidnightBlue Box   MediumPurple Box   DeepSkyBlue Box   Indigo Box   Lavender Box   MediumVioletRed Box   Pink Box   DarkSlateBlue Box

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


Try this problem.

10
+
3
=
 
                    
+
      
=
                          
 
   DarkViolet Box   DarkCyan Box   Chocolate Box   MediumSlateBlue Box   DarkMagenta Box   MediumBlue Box   Khaki Box   Orchid Box   Purple Box   Tan Box  plus     Navy Box   DarkTurquoise Box   MediumSpringGreen Box  equals     DarkViolet Box   DarkCyan Box   Chocolate Box   MediumSlateBlue Box   DarkMagenta Box   MediumBlue Box   Khaki Box   Orchid Box   Purple Box   Tan Box   Navy Box   DarkTurquoise Box   MediumSpringGreen Box

We start with ten boxes, add three boxes, and now have thirteen 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:

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


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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