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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
 
      
-
  
=
    
 
   YellowGreen Box   BurlyWood Box   SaddleBrown Box  minus     YellowGreen Box  equals     BurlyWood Box   SaddleBrown 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
 
          
-
  
=
        
 
   Brown Box   DarkOliveGreen Box   DarkBlue Box   MediumPurple Box   CornflowerBlue Box  minus     Brown Box  equals     DarkOliveGreen Box   DarkBlue Box   MediumPurple Box   CornflowerBlue 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
=
 
                    
-
  
=
                  
 
   Brown Box   DarkOliveGreen Box   DarkBlue Box   MediumPurple Box   CornflowerBlue Box   Olive Box   Cyan Box   MediumOrchid Box   Pink Box   MediumSlateBlue Box  minus     Brown Box  equals     DarkOliveGreen Box   DarkBlue Box   MediumPurple Box   CornflowerBlue Box   Olive Box   Cyan Box   MediumOrchid Box   Pink Box   MediumSlateBlue 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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