Friday, October 22, 2010

8-1 Problem Solving

AHHHH Word Problems!!!

#1 There are 20 members and 47 posters. They even told you what to do when they said 'divide'!
We haven't done two digit division yet, BUT, you can still walk through this one.
COunt by 20's until you get to 47 without going over.
20, 40, 60...Stop at 40 because 60 is too big. That took us 2 counts to get to 40. Now write a 40 underneath the 47 and subtract, you should get 7. We can't count by 20's to get to 7, because 20 is too big. So there are 7 remainders. The final count will be that each member will get 2 posters and there will be 7 posters left over.

#2 SAME AS #1!
There are 43 members and they need to be DIVIDED into groups of 10. Let's count by 10's until we get to 43 or close to it without going over.
10, 20, 30, 40, 50...Stop at 40 because 50 is too big! That too us 4 counts. Write the 40 underneath the 43 and subtract. You should get 3 left over, because you cannot count by 10's to get to 3. SOOOO There will be 4 groups with 3 people extra.

#3 SAME AS #1 AND#2!
There are 20 members and they each need to do the same number of reports. If there are 53 reports we need to DIVIDE them equally among the members. Let's count by 20's until we get to 53 or close to it without going over.
20, 40, 60....Stop at 40 because 60 is too big! That too 2 counts. Now write 40 underneath 53 and subtract. You should get 13. This means that each member will do 2 reports with 13 extras!

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