1OA3
 
Name: 
 

1OA3



Completion
Complete each statement.
 

 1. 

Find the missing addend.  If 2 + 9 = 11; then 9 + [ ] =11
 

 

 2. 

Solve the following problem.  If 7 + 4 = 11; then 4 + 7 = ___
 

 

 3. 

Find the missing addend.  If 6 + 6 = 12; then 6 + __ = 12.
 

 

 4. 

Find the missing addend.  If 7 + 1 = 8; then 1 +___  =8.
 

 

 5. 

Find the missing addend.  If 3 + 2 = 5; then  2 + 3 = __
 

 

 6. 

Find the missing addend.  If 7 + 3 = 10; then __ + 7 = 10.
 

 

 7. 

Find the missing addend.  If 8 + 5 = 13; then __ + 8 = 13.
 

 

 8. 

Solve the following problem.  If 8 + 1 = 9; then __  + 8 = 9 .
 

 

 9. 

Solve the following problem.  If 6 + 9 = 15; then 9 + 6 = __.
 

 

 10. 

Find the missing addend.  If 5 + 7 = 12; then __  + 5 = 12.
 

 



 
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