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. 5 can decompose, or break apart, to 4+1 or 3+2. It can also be decomposed into 3 or more addends (the numbers being added): 1+1+1+1+1 or 1+1+1+2 or 1+1+3 or 1+2+2.

Name ____________________________

Date _____________________________
1.
6
1 
+ 5
____ 
 + 4
____ 
 + ____
Decompose into 3 or more addends
Ex:
1 +
1 +
1 +
1 +
1 +
1
2.
2
____  
+ ____
Decompose into 3 or more addends
             
3.
4
____ 
+ ____ 
____ 
+ ____  
Decompose into 3 or more addends
4.
3
____ 
+ ____ 
Decompose into 3 or more addends
             
5.
9
____ 
+ ____ 
____ 
+ ____  
____ 
 + ____
____ 
+ ____ 
Decompose into 3 or more addends
             
             
6.
10
____ 
+ ____ 
____ 
+ ____  
____ 
 + ____
____ 
+ ____ 
____ 
+ ____  
Decompose into 3 or more addends
             
7.
8
____ 
+ ____ 
____ 
+ ____  
____ 
+ ____  
____ 
+ ____  
Decompose into 3 or more addends
             
             
8.
7
____ 
+ ____ 
____ 
+ ____  
____ 
 + ____
Decompose into 3 or more addends