1.  Which property of addition is represented by the following equation? 7 + 2 = 2 + 7 

Hint
Halfnhalf Clue
 

2.  What is the missing number? 123 + (456 + 789) = ( + 456) + 789 
 Halfnhalf Clue
 

3.  What is the missing number? 5745 + (3856 + 7464) = ( + 3856) + 7464 
 Halfnhalf Clue
 

4.  Which property of addition is represented by the following equation? t + 0 = t 
 Halfnhalf Clue
 

5.  Which equation shows the commutative property of addition? 
 Halfnhalf Clue
 

6.  Which property of addition is represented by the following equation? p + q = q + p 
 Halfnhalf Clue
 

7.  Which equation shows the associative property of addition? 
 Halfnhalf Clue
 
