Asked by CHAYO

What models can be used to help explain the concepts of addition and subtraction of rational numbers? What are the benefits to using such a model? What limitations does the model have? Create an addition or subtraction problem and demonstrate how the model might work.


Answered by Anonymous
Cutting a pie into equal slices so you can add or subtract them.

EXAMPLE: 1/4 + 1/2 = 3/4. To get the half slice to equal the size of the quarter slice, you need to cut it in half. Then the half slice becomes two quarter slices. When you add all of the quarter slices together, you have three of them: the original quarter slice, plus two more from cutting the half slice in half to get two more quarter slices that you could add with the original to get a total of 3 quarters, or 3/4.
Answered by Anonymous
(and for whole numbers, you can think of them as representing entire pies, so when you add or subtract them, no slicing is necessary.)
Answered by CHAYO
CAN YOU PLEASE EXPLAIN EACH QUESTION I'M A LITTLE CONFUSED I'M STUDYING FOR MY MID TERM THAT i'M GOING TO HAVE IN TWO WEEKS. THANKS
Answered by bobpursley
Why don't you explain what you think it means, and let us critique that? We have no idea what you don't understand, the questions to me are straightforward.
Answered by CHAYO
Oh I get it now thanks I was a little confused.
Answered by Anonymous
This is not for a mid term, this is a discussion question for a class, I'm taking it too!
Answered by Anonymous
What models can be used to help explain the concepts of addition and subtraction of rational numbers? What are the benefits to using such a model? What limitations does the model have? Create an addition or subtraction problem and demonstrate how the model might work.
There are no AI answers yet. The ability to request AI answers is coming soon!