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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
 
      
-
  
=
    
 
   Plum Box   MediumAquamarine Box   SlateBlue Box  minus     Plum Box  equals     MediumAquamarine Box   SlateBlue 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
 
          
-
  
=
        
 
   Green Box   LawnGreen Box   Tan Box   SteelBlue Box   DarkCyan Box  minus     Green Box  equals     LawnGreen Box   Tan Box   SteelBlue Box   DarkCyan 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
=
 
                    
-
  
=
                  
 
   Green Box   LawnGreen Box   Tan Box   SteelBlue Box   DarkCyan Box   DarkKhaki Box   DarkOrchid Box   Brown Box   RosyBrown Box   YellowGreen Box  minus     Green Box  equals     LawnGreen Box   Tan Box   SteelBlue Box   DarkCyan Box   DarkKhaki Box   DarkOrchid Box   Brown Box   RosyBrown Box   YellowGreen 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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