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Basic Subtraction Lesson 2: Number 2

Here's an easy example:

3
-
2
=
1
 
      
-
    
=
  
 
   YellowGreen Box   PowderBlue Box   Orchid Box  minus     YellowGreen Box   PowderBlue Box  equals     Orchid Box

We start with three boxes, take away two boxes, and now have one box. We take away two boxes from our three boxes to get one box.


Here's another example:

7
-
2
=
5
 
              
-
    
=
          
 
   Yellow Box   LawnGreen Box   BlueViolet Box   Purple Box   Cyan Box   DeepPink Box   DarkSeaGreen Box  minus     Yellow Box   LawnGreen Box  equals     BlueViolet Box   Purple Box   Cyan Box   DeepPink Box   DarkSeaGreen Box

We start with seven boxes, take away two boxes, and now have five boxes. We take away two boxes from our seven boxes to get five boxes.


Try this problem.

11
-
2
=
 
                      
-
    
=
                  
 
   Tan Box   DodgerBlue Box   Gold Box   GreenYellow Box   Violet Box   Blue Box   DarkBlue Box   DarkTurquoise Box   Brown Box   RosyBrown Box   MediumAquamarine Box  minus     Tan Box   DodgerBlue Box  equals     Gold Box   GreenYellow Box   Violet Box   Blue Box   DarkBlue Box   DarkTurquoise Box   Brown Box   RosyBrown Box   MediumAquamarine Box

We start with eleven boxes, take away two boxes, and now have nine boxes.


In order to do basic subtraction, 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:

  2 - 2 =   0
  3 - 2 =   1
  4 - 2 =   2
  5 - 2 =   3
  6 - 2 =   4
  7 - 2 =   5
  8 - 2 =   6
  9 - 2 =   7
10 - 2 =   8
11 - 2 =   9
12 - 2 = 10
13 - 2 = 11
14 - 2 = 12


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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