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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
 
      
-
  
=
    
 
   ForestGreen Box   Chocolate Box   Maroon Box  minus     ForestGreen Box  equals     Chocolate Box   Maroon 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
 
          
-
  
=
        
 
   SkyBlue Box   Khaki Box   Brown Box   DarkGoldenrod Box   Tan Box  minus     SkyBlue Box  equals     Khaki Box   Brown Box   DarkGoldenrod Box   Tan 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
=
 
                    
-
  
=
                  
 
   SkyBlue Box   Khaki Box   Brown Box   DarkGoldenrod Box   Tan Box   BlueViolet Box   MediumOrchid Box   OliveDrab Box   Pink Box   MediumSpringGreen Box  minus     SkyBlue Box  equals     Khaki Box   Brown Box   DarkGoldenrod Box   Tan Box   BlueViolet Box   MediumOrchid Box   OliveDrab Box   Pink Box   MediumSpringGreen 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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