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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
 
      
-
  
=
    
 
   SkyBlue Box   LawnGreen Box   HotPink Box  minus     SkyBlue Box  equals     LawnGreen Box   HotPink 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
 
          
-
  
=
        
 
   Coral Box   SaddleBrown Box   CadetBlue Box   DarkOliveGreen Box   DarkBlue Box  minus     Coral Box  equals     SaddleBrown Box   CadetBlue Box   DarkOliveGreen Box   DarkBlue 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
=
 
                    
-
  
=
                  
 
   Coral Box   SaddleBrown Box   CadetBlue Box   DarkOliveGreen Box   DarkBlue Box   Fuchsia Box   Pink Box   Orchid Box   Chocolate Box   DarkSlateBlue Box  minus     Coral Box  equals     SaddleBrown Box   CadetBlue Box   DarkOliveGreen Box   DarkBlue Box   Fuchsia Box   Pink Box   Orchid Box   Chocolate Box   DarkSlateBlue 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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