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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
 
      
-
  
=
    
 
   Yellow Box   CornflowerBlue Box   Plum Box  minus     Yellow Box  equals     CornflowerBlue Box   Plum 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
 
          
-
  
=
        
 
   PowderBlue Box   SpringGreen Box   MidnightBlue Box   DarkOrange Box   Magenta Box  minus     PowderBlue Box  equals     SpringGreen Box   MidnightBlue Box   DarkOrange Box   Magenta 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
=
 
                    
-
  
=
                  
 
   PowderBlue Box   SpringGreen Box   MidnightBlue Box   DarkOrange Box   Magenta Box   Pink Box   DeepPink Box   DarkOliveGreen Box   RosyBrown Box   Olive Box  minus     PowderBlue Box  equals     SpringGreen Box   MidnightBlue Box   DarkOrange Box   Magenta Box   Pink Box   DeepPink Box   DarkOliveGreen Box   RosyBrown Box   Olive 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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