Sunday, October 24, 2010

My Very First Blog

Set #3, Number 7

So, whats up this is my very first blog
i hope you like it :D


So for our grade 10 math class we started keeping a journal on what we have learned lately, and some recent questions that we did for class. For example, this week we did a set of math questions, this is our #3 set. One of my favourite questions for this set was question number 7:

7) In the diagram, the sum of numbers in each quarter circle is the same. The value of x+y+z is?















A) 75                    B) 64                  C) 54
D) 171                  E) 300


The question is asking me when you add x+y+z, what is the the value of the sum.

The solution to question 7 is...........
1) I found out the sum of the first box, which is 13, 17 and 45=75
2) I add the second box (28, 8, x), which gave me 36, than subtracted 75 from 36, equals to 39. Therefore z=39
3) I then found out what the third box equals (3, y, 63), which gave me 66, and subtracted 66 from 75 again, which then equals to 9. Hence y=9
4) Then I found the sum of the fourth box (x, 19, 50), which gave me 69, than I subtracted it from 75, which equals 6. Therefore x=6
5) After finding out what x, y and z equals I added all three of them up (39+9+6), which =54
              The answer is: C) 54

I liked this math equation because it was a very step by step process that was easy to understand. It gave me a visual picture in my head. I also really like this math question because when you first read the question it sounds really complicated, but after you read it a second time, you come to a realization that it's actually not that hard.

I learned that just because, at first glance it sound complicated and even though their are a lot of numbers, doesn't mean that its actually hard. I should learn to read through the question a couple of time, before i decide to skip it and go on to the next one. I also learned that just because their are a lot of number, I shouldn't be tricked by the amount of numbers in the question. I should think through the question thoroughly


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