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Basic Addition Lesson 3: Number 3

Here's an easy example:

3
+
1
=
4
 
      
+
  
=
        
 
 plus     Brown Box  equals     Goldenrod Box   Orchid Box   MediumAquamarine Box   Brown Box

We start with three boxes, add one box, and now have four boxes.


Here's another example:

3
+
2
=
5
 
      
+
    
=
          
 
   Indigo Box   Cyan Box   Wheat Box  plus     Wheat Box   Gold Box  equals     Indigo Box   Cyan Box   Wheat Box   Gold Box   Peru Box

We start with three boxes, add two boxes, and now have five boxes.


Try this problem.

3
+
3
=
 
      
+
      
=
            
 
   DarkOliveGreen Box   DarkSlateBlue Box   Tan Box  plus     DarkGoldenrod Box   Khaki Box   MediumVioletRed Box  equals     DarkOliveGreen Box   DarkSlateBlue Box   Tan Box   DarkGoldenrod Box   Khaki Box   MediumVioletRed Box

We start with three boxes, add three boxes, and now have six 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:

3 + 1 = 4
3 + 2 = 5
3 + 3 = 6
3 + 4 = 7
3 + 5 = 8
3 + 6 = 9
3 + 7 = 10
3 + 8 = 11
3 + 9 = 12
3 + 10 = 13
3 + 11 = 14
3 + 12 = 15


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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