Summer Test #1

webmaster · Administrator

Summer Test #1

Date: May 28, 2005

I got 259.

Few Questions.

How do you do 48, 51, 55, 71?

Vinay

Saeben · Member

I got a 309. Remember I am a number sense coach.

I am sure most students will beat that score.

One of my students took the test and scored a 263.

He just finished his freshman year.

useless · Long-term Member

Saeben, would you like me to include this kid in the league? If so, I'll need some info...

mtrmth88 · Star Member

wow.... looking at all of your scores... i really shouldnt be doing this league...

im not saying my score yet... lets just say its good for me, but no where near the rest of you...

youll see it once zack posts the 'leaderboard' thingy.

Date: May 30, 2005

lol, don't get discouraged Meghan, you'll soon be up there.

I made a 263 according to the answer key, and a 290 according to the corrections. I really don't think I've gotten any better since the beginning of the year. It's discouraging, but whatever.

#48: I don't really know how I worked this, but I saw that 8^(2/3) was 4 so I just but 27^(2/3) which is 9. I'm really out of practice so I can't show this mathematically

#51: Kind of a strange series, and I looked at it like this: +4, +1, +3, +2, +2, ... --- so the odd numbered indices decrease by one, and the even increase. Therefore, the next term is +3 making 16

#55: To generalize, anytime you want to know the distinct permutations of a set with number of elements n, your answer is:

n!/(e1!e2!e3!...)

where each e (e1, e2, e3) is the number of times each term repeats. So for (F,R,O,D,O), our answer is

5!/(1!1!2!1!)

because there is 1 of each F,R, and D, and two O's. So pretty much just do n!, then divide by the factorial of the number of each repeating term. An Example: (M,I,S,S,I,S,S,I,P,P,I):

11!/(4!4!2!), which I believe is 34650

#71: I skipped this, but I would just take the prime factorization of 6 and 12 and work with that:

(2^3 * 3^3)/(2^10 * 3^5)

1/(2^7 * 3^2)

1/(128*9)

1/1152

Date: May 30, 2005

^^^^ Michael Gummelt

Oh, and Saeben, don't say that most students will beat your 309. That only discourages most of the new competitors and most likely more of the most experience ones. There's not a large number of students in the state that would beat that score, even if it is an easy test. I've been to state for the past two years and I didn't beat that score, and I've been to very few invitationals where first place was higher than that. As boards like this tend to attract somewhat of the elite competitors, it also needs to be a place for novice students to learn and feel welcome.

vvr1590 · Senior Member

Michael,

what grade are you in? What conference?

Vinay

mtrmth88 · Star Member

soon? hmm... i hope so... that would be great.

IM THE ONLY PERSON WHO DIDNT BREAK A 200!!!

and its Megan w/o the h... thanks :D

useless · Long-term Member

Micheal is going to be a Junior next year, along with me, sigh... Goodbye any future hopes of success in TMSCA State...

Anyway Megan, I made a 170 if that conforts you at all. You do need to bear in mind that the people that have already posted their scores are the people who win state; the ones that havent posted their scores are either lazy or scared to put up sub 100 scores. A 150 is nothing to sneeze at. It places nicely at invites, and by the time that district rolls around (assuming that you stick with this), you will be in the running for a first place (even in your scary district).

You've said before that your problem is speed. So is mine. I got to #43 and I ran out of time, missing 5 questions. 5 EASY questions. But, that is much better than what I used to do. Right when I started practicing NS (around district time) I was scoring around a 65. I learned a few tricks and became needlessly confident, which bore me the fruit of a 78 at district. Discouraging, eh? I think I got to #30 on that test when they called time. Anyway, I have been doing NS off and on during the breaks and I seemed to have improved, by 92 points! Thats just from taking a test or two a day!

So, considering how good you are at math, megan, youre bound to do well in NS in the upcoming season. Someone should've set up math/science/calc leagues as well.

- Zack -

Date: May 31, 2005

I'm an upcoming junior in 4A. Does anyone know when the next redistricting is scheduled for? cuz our school is at about 1800 pop. right now, and is growing rapidly. We'll most likely be 5A whenever they redistrict. Next year should be a little different without Aaron around. Azle is relatively close to the metroplex as is Midlothian, so we cross paths quite a bit this past year at invitationals. At the first 3 or 4 invitationals I would always get 1st in Sophomores, but get 2nd overall because Goldsmith would beat me by a hundred points. I think his three scores were 364, 382, 373 or something like that.

vvr1590 · Senior Member

Megan,

Tell your coach to buy the Dr. Numsen daily tests! It doesn't matter if it's this year or last years (last years are far cheaper), just buy them.

At the beginning of this year, at the first (and only) invitational my school went to, i got 5th place with a 125. I practiced all those Dr. Numsen tests, and got my average up to 250 pretty quick. I was able to manage a 192 at state.

Buy Them!

Vinay

P.S. Good Luck next year

mtrmth88 · Star Member

heh thanks! ill see what i can do...

fht · Long-term Member

I didn't even beat 309.

Megan, don't be discouraged, you're still the calculator queen remember?

It would be really sad if Midlothian qualify 5A, I was looking forward to competing with Michael.

Vinay, think of #48 this way, if you know 2^(3x) = 27, what would you do to get 2^(2x)? You 2/3 root it right?

This was a very good test, Mr. Jones and I'm eagerly waiting for harder tests.

Best Wishes to All

webmaster · Administrator

Thanks for the compliment. Believe me it is surely appreciated.

I have the second test half done, and I am pretty sure it is going to be slower than the first. I learned my lesson though, I will do my best to go through the answer key more thoroughly. I just hate that part. I don't like making the answer key, only the test. LOL

Don't worry about not scoring high on any of my tests. Number Sense is something you have to work at by continually practicing.

By the way, I make sure EVERY question has a special way of doing the problem. So even if you can do the problem, but it takes you more than a few seconds, ask me anything and I will tell you how I would do the problem.

#48) You just need to practice on recognizing how to do these. You should take the 2/3 root.

#51) Every other number is added by 4 or 5.

#71) After reducing, it ends up being 1/(12^2 * 2^3) or 1/(144 x 8) = 1/1152