Solving Radical Expressions.

I think the picture basically explains itself. But anyways here we go. T_T
1.Kill the negative by flipping it to the top
2.Put in the 3/2 into the package
3.16^3 and square root, same with 25^3 and square root
4.For the X term, it's X^3 x X^3/2 which is X^9/2
5.Take out X^4 and there you go! T^T



1.Kill the negatives again by flipping them to the opposite side
2.Put in the 5/2 into the package
3.81^5 to square root and etc.
4.For X and Y terms, it's simply power on power so you x4 with 5/2 to get 20/2 and x2with 5/2 to get 10/2
5. Simplify X and Y
6.There you go :D
7. Picture Mistake. You have to flip X and Y. Sorry about that!

I really don't like doing all the clicking and making sure you have the right terms. It's time consuming and I much rather write it out by hand neatly rather than doing it on a computer. I'm not a tech-junkie and so it was confusing when we had to do it at home. Anyways, always good to learn something new!

Good Qualities for Math!

*Sigh* I really don't like giving my opinions on what qualities you need because people judge you based on the opinions. They might observe you and see if you live up to what you say. I've chose 3 qualities nevertheless. Humbleness is necessary and a very good skill to have. If you're not humble than people will be jealous or even hate you for being what I call, "A Jerk." People shouldn't boast about what they got on their test marks or what they have accomplished. It just causes hate and sadness for the people around you. Being humble will resolve many potential problems.

The second quality that is good for math, would be confidence/intelligence. I couldn't decide which one was more important. They were both pretty important to my standards. Being confident will allow you to go beyond your comfort zone. Being intelligent doesn't mean being smart, it basically means making sure you don't make careless mistakes and putting down every necessary detail in the answer and in your work.

The last most important quality would be to work hard. I've heard that success is like an equation. It's 10% intelligence and 90% being a hard worker. Working hard has brought many people success. It can be seen around the world. Laziness is very common with the "people" today. It can cause very bad effects to you and other people. Working hard is the best quality that everyone should have in math.

It was fun thinking about what qualities that would be good in math. Hahahahahaha!

Cayley Contest Experience.

It was quite an experience. I forgot the day it was on but it was the easiest one yet. It was unexpected because Mr. Cheng hadn't warn us about it. Usually we would do the contest at lunch. But this time we did it in the class room. I thought it was the easiest one yet. I'm also pretty sure I got the 3 questions right. But, you can never be too sure......

I think this contest was my last one and I don't have the sheet with me right now.
I could show you guys a question but the Mr. Cheng didn't give us the sheet back yet.
Thank You for reading!

[EDIT]
Mr. Cheng gave the Math Contest sheet back to me. That's a relief! So, I've decided to share one question with you guys :D
Question 10 goes like this.
"A class of 30 students recently wrote a test. If 20 students scored 80, 8 students scored 90, and 2 students scored 100, then the class average on this test was...."

At first when I looked at the question I got confused because I only counted 22 students. And I was like, that isn't 30! But then I realized that I had misread something and that was the remaining 8 students. T.T
So, for this question I first remembered my old French teacher talking about how bad the class average was. Then I thought of a list with all of our names on it with percentages next to them. I found it easier to do that. So, you want to find the total average right? First, you take 20x80, take off the percent for now, and that gives you 1600. Why do this? Average is adding up all the terms and then dividing by the number of terms you have. In this case, you 20 students and a 80% average doesn't give you a term but two terms and you just have to add them together. Do the same with the next two which is 8x90=720 and 2x100=200.

Add the terms now. 1600+720+200= 2620. Now you divide by 3. And you get 84%.
It was a very fun experience when you do it using personal experiences to solve math problems. Sometimes I find some questions on the contest as difficult as the ones for homework.

Math Contest- March 4, 2010

This was really easy. I can't believe how simple the first 20 questions were. Anyways, I chose to show you guys question 3. It goes like this. The value of 43-41+39-37+35-33+31-29 is?

Well, this is hilarious. It doesn't feel like a Grade 10 question. First, take 43-41 and you get 2. Then you look at 39-37 and you get 2. Now you see that every pair gives you 2. So then you will have 4 pairs of 2s. 4x2=....... (DRUM ROLL)

8!

Very good experience. I felt good about myself when I got 5th in class. But that is not important because it's about improving from the first time. I should work harder because I know I can do this. Back then, when I was in Grade 3, I would always have trouble in Math. I'm not good at Math but what keeps me going is working hard and believing that I can do what other people can do. Math is like a game. If you win you will feel happy but if you lose you will feel disappointed. So, that is why I liked this contest. I did well on it and I want to improve!