Skill 2B
Order Property and Zero Property

The order property simply states that, "Numbers in an addition problem can be added in any order and the answer will be the same."  This is not true of course for subtraction and division. 
The zero property states that, "Whenever zero is added to a number, the answer is the same as the number."  Knowing and remembering these two "properties" will save time when answering larger problems and especially when answering multi-step problems requiring several operations to complete.
The order property was introduced in Grade 1 and is being reviewed here.

When I read each problem, think carefully about what is being asked and tell me your answer.


If 5 + 6 = 11 then 6 + 5 = ____