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Combinations

LESSON 2 - COMBINATIONS

Young Buddy Combinations

+5

+1 = + 5 - 4 
+2 = + 5 - 3 
+3 = + 5 - 2 
+4 = + 5 - 1

-5

-1  =  + 4 - 5 
-2  =  + 3 - 5 
-3  =  + 2 - 5 
-4  =  + 1 - 5

Old Buddy Combinations

+10

+ 1  =  - 9  +  10 
+ 2 =  - 8  +  10 
+ 3 =  - 7  +  10 
+ 4 =  - 6  + 10 
+ 5 =  - 5  +  10 
+ 6 =  - 4  +  10 
+ 7 =  - 3  +  10 
+ 8 =  - 2  +  10 
+ 9 =  - 1   +  10

-10

-9 =  - 10  +  1 
-8 =  - 10  +  2  
-7 =  - 10  +  3 
-6 =  - 10  +  4 
-5 =  - 10  +  5 
-4 =  - 10  +  6 
-3 =  - 10  +  7 
-2 =  - 10  +  8 
-1 =   - 10  +  9 

Double Combinations

+10

+ 6 = (+ 1 - 5 ) +  10
+ 7 = (+ 2 - 5 ) + 10
+ 8 = (+ 3 - 5 ) + 10
+ 9 = (+ 4 - 5 ) + 10 

-10

 - 6 = - 10 ( + 5 - 1 )
  - 7 = - 10 ( + 5 - 2 ) 
  - 8 = - 10 ( + 5 - 3 )
  - 9 = - 10 ( + 5 - 4 )  

Concept explanation of combinations
Young Buddy
Old Buddy
Double Combination
Go back to Level 1



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