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Basic Subtraction Lesson 4: Number 4

Here's an easy example:

5
-
4
=
1
 
          
-
        
=
  
 
   Turquoise Box   DarkOliveGreen Box   SaddleBrown Box   Brown Box   MediumTurquoise Box  minus     Turquoise Box   DarkOliveGreen Box   SaddleBrown Box   Brown Box  equals     MediumTurquoise Box

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


Here's another example:

11
-
4
=
7
 
                      
-
        
=
              
 
   DarkOrchid Box   DarkOrange Box   DarkKhaki Box   CornflowerBlue Box   MediumVioletRed Box   Fuchsia Box   BurlyWood Box   Chocolate Box   Sienna Box   SlateBlue Box   SkyBlue Box  minus     DarkOrchid Box   DarkOrange Box   DarkKhaki Box   CornflowerBlue Box  equals     MediumVioletRed Box   Fuchsia Box   BurlyWood Box   Chocolate Box   Sienna Box   SlateBlue Box   SkyBlue Box

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


Try this problem.

12
-
4
=
 
                        
-
        
=
                
 
   RosyBrown Box   Peru Box   DarkBlue Box   SteelBlue Box   SpringGreen Box   Violet Box   MidnightBlue Box   Khaki Box   MediumPurple Box   Indigo Box   Blue Box   DarkGoldenrod Box  minus     RosyBrown Box   Peru Box   DarkBlue Box   SteelBlue Box  equals     SpringGreen Box   Violet Box   MidnightBlue Box   Khaki Box   MediumPurple Box   Indigo Box   Blue Box   DarkGoldenrod Box

We start with twelve boxes, take away four boxes, and now have eight 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:

  4 - 4 =   0
  5 - 4 =   1
  6 - 4 =   2
  7 - 4 =   3
  8 - 4 =   4
  9 - 4 =   5
10 - 4 =   6
11 - 4 =   7
12 - 4 =   8
13 - 4 =   9
14 - 4 = 10
15 - 4 = 11
16 - 4 = 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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