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Basic Subtraction Lesson 1: Number 1

Welcome to Basic Subtraction. In this unit, you will learn how to subtract numbers from one to twelve and also zero. FoxyMath wishes you success!

Here's an easy example:

3
-
1
=
2
 
      
-
  
=
    
 
   DarkOliveGreen Box   YellowGreen Box   MediumSpringGreen Box  minus     DarkOliveGreen Box  equals     YellowGreen Box   MediumSpringGreen Box

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


Here's another example:

5
-
1
=
4
 
          
-
  
=
        
 
   Magenta Box   DarkGoldenrod Box   Green Box   Cyan Box   MidnightBlue Box  minus     Magenta Box  equals     DarkGoldenrod Box   Green Box   Cyan Box   MidnightBlue Box

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


Try this problem.

10
-
1
=
 
                    
-
  
=
                  
 
   Magenta Box   DarkGoldenrod Box   Green Box   Cyan Box   MidnightBlue Box   MediumPurple Box   SkyBlue Box   DeepSkyBlue Box   Pink Box   Turquoise Box  minus     Magenta Box  equals     DarkGoldenrod Box   Green Box   Cyan Box   MidnightBlue Box   MediumPurple Box   SkyBlue Box   DeepSkyBlue Box   Pink Box   Turquoise Box

We start with ten boxes, take away one box, 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:

  1 - 1 =   0
  2 - 1 =   1
  3 - 1 =   2
  4 - 1 =   3
  5 - 1 =   4
  6 - 1 =   5
  7 - 1 =   6
  8 - 1 =   7
  9 - 1 =   8
10 - 1 =   9
11 - 1 = 10
12 - 1 = 11


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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