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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.

9
-
1
=
 
 
                  
-
  
=
                
 
   BurlyWood Box   DarkSlateBlue Box   Brown Box   Plum Box   Blue Box   Chartreuse Box   Fuchsia Box   DarkOrange Box   DarkGreen Box  minus     BurlyWood Box  equals     BurlyWood Box   DarkSlateBlue Box   Brown Box   Plum Box   Blue Box   Chartreuse Box   Fuchsia Box   DarkOrange Box

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