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Basic Subtraction Lesson 2: Number 2

Here's an easy example:

3
-
2
=
1
 
      
-
    
=
  
 
   YellowGreen Box   Maroon Box   SlateBlue Box  minus     YellowGreen Box   Maroon Box  equals     SlateBlue 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
 
              
-
    
=
          
 
   Sienna Box   Gold Box   GreenYellow Box   Plum Box   SteelBlue Box   LimeGreen Box   RosyBrown Box  minus     Sienna Box   Gold Box  equals     GreenYellow Box   Plum Box   SteelBlue Box   LimeGreen Box   RosyBrown 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
=
 
                      
-
    
=
                  
 
   Navy Box   MidnightBlue Box   MediumBlue Box   LawnGreen Box   MediumAquamarine Box   DeepPink Box   Wheat Box   Yellow Box   MediumPurple Box   MediumOrchid Box   DarkGoldenrod Box  minus     Navy Box   MidnightBlue Box  equals     MediumBlue Box   LawnGreen Box   MediumAquamarine Box   DeepPink Box   Wheat Box   Yellow Box   MediumPurple Box   MediumOrchid Box   DarkGoldenrod 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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