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Basic Subtraction Lesson 4: Number 4

Here's an easy example:

5
-
4
=
1
 
          
-
        
=
  
 
   DeepSkyBlue Box   Maroon Box   Purple Box   MediumSpringGreen Box   Thistle Box  minus     DeepSkyBlue Box   Maroon Box   Purple Box   MediumSpringGreen Box  equals     Thistle 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
 
                      
-
        
=
              
 
   SeaGreen Box   MediumBlue Box   Gold Box   Goldenrod Box   OliveDrab Box   Empty Box   DarkGreen Box   DarkBlue Box   SaddleBrown Box   MediumSeaGreen Box   Chartreuse Box  minus     SeaGreen Box   MediumBlue Box   Gold Box   Goldenrod Box  equals     OliveDrab Box   Empty Box   DarkGreen Box   DarkBlue Box   SaddleBrown Box   MediumSeaGreen Box   Chartreuse 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
=
 
                        
-
        
=
                
 
   Cyan Box   MidnightBlue Box   Coral Box   Pink Box   Navy Box   HotPink Box   Lavender Box   Olive Box   Chocolate Box   DodgerBlue Box   DarkSeaGreen Box   DarkMagenta Box  minus     Cyan Box   MidnightBlue Box   Coral Box   Pink Box  equals     Navy Box   HotPink Box   Lavender Box   Olive Box   Chocolate Box   DodgerBlue Box   DarkSeaGreen Box   DarkMagenta 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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