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Basic Subtraction Lesson 2: Number 2

Here's an easy example:

3
-
2
=
1
 
      
-
    
=
  
 
   SkyBlue Box   Aquamarine Box   HotPink Box  minus     SkyBlue Box   Aquamarine Box  equals     HotPink 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
 
              
-
    
=
          
 
   DarkCyan Box   Brown Box   Magenta Box   Turquoise Box   DarkKhaki Box   Coral Box   Navy Box  minus     DarkCyan Box   Brown Box  equals     Magenta Box   Turquoise Box   DarkKhaki Box   Coral Box   Navy 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
=
 
                      
-
    
=
                  
 
   Blue Box   Fuchsia Box   Maroon Box   Olive Box   Chocolate Box   SpringGreen Box   MediumBlue Box   DarkOliveGreen Box   PowderBlue Box   DarkGoldenrod Box   SaddleBrown Box  minus     Blue Box   Fuchsia Box  equals     Maroon Box   Olive Box   Chocolate Box   SpringGreen Box   MediumBlue Box   DarkOliveGreen Box   PowderBlue Box   DarkGoldenrod Box   SaddleBrown 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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