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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
 
      
-
  
=
    
 
   Cyan Box   BurlyWood Box   Goldenrod Box  minus     Cyan Box  equals     BurlyWood Box   Goldenrod 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
 
          
-
  
=
        
 
   RosyBrown Box   Teal Box   DodgerBlue Box   CadetBlue Box   BlueViolet Box  minus     RosyBrown Box  equals     Teal Box   DodgerBlue Box   CadetBlue Box   BlueViolet 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
=
 
                    
-
  
=
                  
 
   RosyBrown Box   Teal Box   DodgerBlue Box   CadetBlue Box   BlueViolet Box   DarkMagenta Box   DarkGoldenrod Box   Gold Box   Empty Box   DarkViolet Box  minus     RosyBrown Box  equals     Teal Box   DodgerBlue Box   CadetBlue Box   BlueViolet Box   DarkMagenta Box   DarkGoldenrod Box   Gold Box   Empty Box   DarkViolet 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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