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Basic Subtraction Lesson 4: Number 4

Here's an easy example:

5
-
4
=
1
 
          
-
        
=
  
 
   RosyBrown Box   Aqua Box   DarkKhaki Box   DarkMagenta Box   Chartreuse Box  minus     RosyBrown Box   Aqua Box   DarkKhaki Box   DarkMagenta Box  equals     Chartreuse 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
 
                      
-
        
=
              
 
   MediumVioletRed Box   Turquoise Box   DarkOrchid Box   DarkGoldenrod Box   Sienna Box   DarkSlateBlue Box   Aquamarine Box   MediumTurquoise Box   YellowGreen Box   MediumAquamarine Box   SeaGreen Box  minus     MediumVioletRed Box   Turquoise Box   DarkOrchid Box   DarkGoldenrod Box  equals     Sienna Box   DarkSlateBlue Box   Aquamarine Box   MediumTurquoise Box   YellowGreen Box   MediumAquamarine Box   SeaGreen 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
=
 
                        
-
        
=
                
 
   Goldenrod Box   DarkSeaGreen Box   Gold Box   SpringGreen Box   Indigo Box   DodgerBlue Box   MediumSlateBlue Box   RoyalBlue Box   HotPink Box   SteelBlue Box   DarkOliveGreen Box   Wheat Box  minus     Goldenrod Box   DarkSeaGreen Box   Gold Box   SpringGreen Box  equals     Indigo Box   DodgerBlue Box   MediumSlateBlue Box   RoyalBlue Box   HotPink Box   SteelBlue Box   DarkOliveGreen Box   Wheat 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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