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Basic Subtraction Lesson 2: Number 2

Here's an easy example:

3
-
2
=
1
 
      
-
    
=
  
 
   MediumBlue Box   Teal Box   PowderBlue Box  minus     MediumBlue Box   Teal Box  equals     PowderBlue 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
 
              
-
    
=
          
 
   MediumPurple Box   SlateBlue Box   Violet Box   Brown Box   Chartreuse Box   MediumAquamarine Box   MediumTurquoise Box  minus     MediumPurple Box   SlateBlue Box  equals     Violet Box   Brown Box   Chartreuse Box   MediumAquamarine Box   MediumTurquoise 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
=
 
                      
-
    
=
                  
 
   MediumVioletRed Box   Peru Box   BurlyWood Box   SteelBlue Box   Cyan Box   SpringGreen Box   Olive Box   SandyBrown Box   Aqua Box   Yellow Box   Empty Box  minus     MediumVioletRed Box   Peru Box  equals     BurlyWood Box   SteelBlue Box   Cyan Box   SpringGreen Box   Olive Box   SandyBrown Box   Aqua Box   Yellow Box   Empty 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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