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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
 
      
-
  
=
    
 
   Khaki Box   DarkOrange Box   Gold Box  minus     Khaki Box  equals     DarkOrange Box   Gold 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
 
          
-
  
=
        
 
   MediumPurple Box   DarkKhaki Box   Olive Box   Aqua Box   Goldenrod Box  minus     MediumPurple Box  equals     DarkKhaki Box   Olive Box   Aqua Box   Goldenrod 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
=
 
                    
-
  
=
                  
 
   MediumPurple Box   DarkKhaki Box   Olive Box   Aqua Box   Goldenrod Box   DarkSeaGreen Box   SteelBlue Box   RoyalBlue Box   Indigo Box   DarkCyan Box  minus     MediumPurple Box  equals     DarkKhaki Box   Olive Box   Aqua Box   Goldenrod Box   DarkSeaGreen Box   SteelBlue Box   RoyalBlue Box   Indigo Box   DarkCyan 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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