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Basic Subtraction Lesson 2: Number 2

Here's an easy example:

3
-
2
=
1
 
      
-
    
=
  
 
   OliveDrab Box   Chocolate Box   SteelBlue Box  minus     OliveDrab Box   Chocolate Box  equals     SteelBlue 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
 
              
-
    
=
          
 
   Cyan Box   Purple Box   CadetBlue Box   PowderBlue Box   Sienna Box   Khaki Box   SlateBlue Box  minus     Cyan Box   Purple Box  equals     CadetBlue Box   PowderBlue Box   Sienna Box   Khaki Box   SlateBlue 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
=
 
                      
-
    
=
                  
 
   Coral Box   Chartreuse Box   SandyBrown Box   HotPink Box   Empty Box   DarkSlateBlue Box   Thistle Box   Plum Box   DarkViolet Box   DarkOliveGreen Box   RosyBrown Box  minus     Coral Box   Chartreuse Box  equals     SandyBrown Box   HotPink Box   Empty Box   DarkSlateBlue Box   Thistle Box   Plum Box   DarkViolet Box   DarkOliveGreen Box   RosyBrown 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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