Video Transcript
Find the missing number: 880 plus
6207 equals what plus 880.
Let’s imagine it like this. Here is a block of 880. And here is a block of 6207. Inside this bottom block, it’s
equal to 880 plus 6207. Inside that third space, you fill
it with 880. What is remaining? The remaining space is 6207.
You see the Commutative property of
addition tells us that changing the order of the operands, the operands being the
values that you’re adding together, does not change the result. If you change the order in which
you add two numbers, you don’t change the result. Here 880 plus 6207 is equal to 6207
plus 880.