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The following exercise will help you learn the basic subtraction equations for the number 1. When you think you know the equations, please click on the Continue to Next Page link to test your knowledge. Please take your time: take whatever time you need to learn the material.

12
-
1
=
 
 
                        
-
  
=
                      
 
   OliveDrab Box   Aqua Box   Khaki Box   DarkSlateBlue Box   Turquoise Box   DarkOrchid Box   DarkMagenta Box   Pink Box   MediumAquamarine Box   DarkOliveGreen Box   Tan Box   MediumSeaGreen Box  minus     OliveDrab Box  equals     OliveDrab Box   Aqua Box   Khaki Box   DarkSlateBlue Box   Turquoise Box   DarkOrchid Box   DarkMagenta Box   Pink Box   MediumAquamarine Box   DarkOliveGreen Box   Tan Box

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