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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   DarkSeaGreen Box   Indigo Box  minus     Plum Box  equals     DarkSeaGreen Box   Indigo 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
 
          
-
  
=
        
 
   MediumSeaGreen Box   MediumAquamarine Box   CadetBlue Box   Aquamarine Box   Cyan Box  minus     MediumSeaGreen Box  equals     MediumAquamarine Box   CadetBlue Box   Aquamarine Box   Cyan 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
=
 
                    
-
  
=
                  
 
   MediumSeaGreen Box   MediumAquamarine Box   CadetBlue Box   Aquamarine Box   Cyan Box   MediumPurple Box   Green Box   MediumTurquoise Box   Chartreuse Box   Thistle Box  minus     MediumSeaGreen Box  equals     MediumAquamarine Box   CadetBlue Box   Aquamarine Box   Cyan Box   MediumPurple Box   Green Box   MediumTurquoise Box   Chartreuse Box   Thistle 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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