Wednesday, April 28, 2010

Daily Scribe Tues. April 27

Today we learned how to find an answer to an equation using coins and pouches. With these problems, you find how many coins are in a pouch. For example...

C= coins P=pouches

cccccccccc=pppcccc


So first you put
3p (3 pouches)+4 (the 4 coins on the side it was with) =10 (total coins on the other side)

Then you do
3p+4=10
-4 -4
__________
3p=6

So you subtract 4 from 4, or in any problem, the number of coins on the pouches side. Then you'd subtract 4 from 10, or 4 from the 10 coins on the other side.

You see after you do the first steps you see 3p=6

So then you'd do

3p=6
________
3 3
_______
1p= 2

So 3 divided by 3 is 1, so you have 1 pouch. Then you do 6 divided by 3 and get 2, so there's 2 coins per pouch.

This is what we learned in class.

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