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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
 
      
-
  
=
    
 
   Aqua Box   Plum Box   Pink Box  minus     Aqua Box  equals     Plum Box   Pink 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
 
          
-
  
=
        
 
   SaddleBrown Box   BlueViolet Box   Khaki Box   DodgerBlue Box   Orchid Box  minus     SaddleBrown Box  equals     BlueViolet Box   Khaki Box   DodgerBlue Box   Orchid 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
=
 
                    
-
  
=
                  
 
   SaddleBrown Box   BlueViolet Box   Khaki Box   DodgerBlue Box   Orchid Box   DarkViolet Box   Turquoise Box   Maroon Box   SteelBlue Box   BurlyWood Box  minus     SaddleBrown Box  equals     BlueViolet Box   Khaki Box   DodgerBlue Box   Orchid Box   DarkViolet Box   Turquoise Box   Maroon Box   SteelBlue Box   BurlyWood 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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