Decompose Whole Numbers
Decompose means to break into smaller parts like when fruit rots or decomposes. Decomposing a number means to break apart a number into to smaller numbers. 12 can decompose, or break apart, to 8+4 , 7+5 etc. It can also be decomposed into 3 or more addends (the numbers being added): 1+1+1+1+1+1+1+1+1+1+1+1 or 4+4+4 or 1+1+10 etc.

Name ____________________________

Date _____________________________
1.
11
10
+  1
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+ ____  
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 + ____
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+ ____ 
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+ ____  
Decompose into 3 or more addends
             
             
             
             
2.
15
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+ ____ 
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+ ____  
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 + ____
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+ ____ 
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+ ____  
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+ ____ 
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+ ____  
Decompose into 3 or more addends
             
             
3.
12
____ 
+ ____ 
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+ ____  
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 + ____
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+ ____ 
____ 
+ ____  
____ 
+ ____ 
Decompose into 3 or more addends
             
             
             
4.
13
____ 
+ ____ 
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+ ____  
____ 
 + ____
____ 
+ ____ 
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+ ____  
____ 
+ ____ 
Decompose into 3 or more addends
             
             
             
5.
16
____ 
+ ____ 
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+ ____  
____ 
 + ____
____ 
+ ____ 
____ 
+ ____  
____ 
+ ____ 
____ 
+ ____  
____ 
+ ____ 
Decompose into 3 or more addends
             
             
             
             
6.
14
____ 
+ ____ 
____ 
+ ____  
____ 
 + ____
____ 
+ ____ 
____ 
+ ____  
____ 
+ ____ 
____ 
+ ____  
   
Decompose into 3 or more addends