Number Sense Forum

bradp · bradp

What does your school's math/science club do? How many people are involved? How long/often do you meet?

bradp · bradp

How many distinct 4 letter words can be formed from the letters TURKEY? Answer key says 6C4 (15).. i think it's 6P4 (360)? 6% of 14 2/7 = ? If f(x) = x^2 then the slope of the line normal to f at x = 1 is ?

bradp · bradp

The 06-07 stated/geometry problem list is posted on the uil site. Are all (or most) of the problems on the 06-07 tests going to be based off ones from this list?

useless · useless

I was destroyed by this test: 152. What makes me sooo mad about it was that I wasted waaaay too much time on stuff that I eventually ended up getting wrong anyway... And that kept me from completing the easier last section of the test... But I can't stand skipping problems... It always messes with my mind...

Anonymous

I have no knowledge of UIL CS but the scores in my district the past year were very low. I was wondering how long it would take to learn the basics of the UIL CS test and if there are any available web sites to learn the basics. Also, has anyone seen the UIL State Tests from 06 yet online?

bradp · bradp

1) sin(15)cos(45) - sin(45)cos(15) I don't know much trig.. just some identities 2) 5^6 * 2^4 and also 4^5 * 5^5 for every 5 and 2 there's a 10... the multiply the remaining 2s and 5s to get the answer - is that the best way? 3) The next term of 1,4,11,26,57 The third finite differences of...

fht · fht

Ah, might as well start a topic so people can post here too. Seems like AP results are mailed to the whole state of Texas today, how's everyone's everything? And if you want to say "wtf" or "holy sh--," go check Kieran's result. Here's my pathetically shortlist: Chem: 5, Eng3AP: 3, CalAB: 5, AP...

The3point14 · The3point14

I seem to have problems with these questions and can not find any simple way of doing them. (1) (4 7/12) * (2 2/5) (2) (2 2/5) * (5 1/6) -- (improper fraction) *(3) 12.75 x 28300 / 102 (4) the expansion of (2x - y)^5 has __ terms (5) the simplified coefficiant of the&nb...

useless · useless

I've been doing about 2-3 NS tests a day. I've figured out all sorts of cool problems, but this one beats me every time. If 125 = x^2 - y^2 and x > y are positive integers then x = ___________________ I figured this one out by thinking 15^2 - 10^2 = 125, but I did this rather arbitr...

bradp · bradp

2004-2005 District 1 52) The number of terms in the expansion of (x+2y)^3 * (x-y)^2 is 57) (7/11) - (55/89)

useless · useless

These came off the Rocksprings math contest, which was, for the most part, outstandingly easy. I scored a 252 on their scale. But with the 2 questions that the answer key had wrong, I scored a 268. Not bad, eh? Anyways, 31) What is the area of the circle formed when a plane passes 6-m from the ce...

useless · useless

This is off of the TMSCA 05-06 Test 2: 25) If log(base 9) x = klog(base 3)y . If y = x^a, then a = ______________ I did this: log(base 9) x = 2 log(base 3) x = ka log(base 3) x. You then get 2 = ka and 2/k =a. Thats wrong. The answer is 1/2k. I was wondering what I did wrong. 42) The slant asym...

useless · useless

Ug... This test just proved to me how slow at these tests. I only got to #34, but I only missed one. So that means 161 for me on that one. Anyway, I have some questions. 13) 216 square inches = _____________ square feet. I miss these EVERYTIME. How do you go from one to the other quickly? (Not just in squa...

useless · useless

I know, I know, this is supposed to be a NS board... But I really want to know how to do these accurately and quickly. 2004 Invite B 7) A triangle with side lengths 6, 6, and 8 is a ______________ triangle. How do you determine whether they're acute or not? Does it have to d...

useless · useless

I saw about 10 problems in the form: (10a+b)(10a+(b-5)) like 71*74. Is the shortcut: 50a(2a+1) + b(b-5)? It seems that there should be a faster way. I do these by foiling, but if there is a faster way, I'd like to hear it. - Zack -

kyniemxotxa · kyniemxotxa

14 x 24 x 34 (i created this one) i follow the steps on from the main page, reduce to 10 x (24 +(4+4+2)) x 30. which is 10200, 11% away from the acutal answer. is there a better, surer approach? how do i know when that method works?

bradp · bradp

1) 3^14 / 7 has a remainder of... couldn't quickly find a repeating pattern as far as 3^1 mod 7, 3^2 mod 7 etc. 2) 60^2 + 48^2 - 12^2 (a+b)^2 + a^2 - b^2 = 2a^2 + 2ab quick way to do 2(48)^2 + 2(48)(12)?

useless · useless

I think Brad mentioned that he's taking every test from 1990-2006, which means enough tests to keep him occupied the entire summer: 5 tests / year * 16 years = 80 tests to take. Which means all summer long... I say that we all do the same, and keep up a test score log to see how we improve/stack up agai...

kyniemxotxa · kyniemxotxa

how and when you know to use them? im not very advance, so step by step would be nice

kyniemxotxa · Anonymous

I'm Mike Jones. Don't act like u don't know ma name. I'm Mike Jones. Who? Mike Jones. Who? Mike Jones.

useless · useless

Yeah, so I've come across about 8 different types of tests now: UIL, TMSCA, Best of Texas, Shootout, AMT, Hexco, Dr. Numsen, Ramierez, and that Numbahsenhei thing. I've noticed that the degree of difficulties on each test vary greatly... I was wondering what y'all thought of each one... Of all of t...

useless · useless

Not a good test for me... Made too many careless mistakes and got a 118. YUCK! Got to 38 and missed 8. Anyways... I have a few more questions 19) 9/5^4(2) = ________________ Decimal I did 9/10*125 Which was 9/1250 and then I multiplied by 4/5 and messed up. Whats the easier way? Or is there on...

useless · useless

Well... I'm happy about this test. I'm finally starting to see some marked improvement in my score. This test wasnt an easy one either, so yeah! But of course... I have a few questions. 20) 61 x 18 x 49 = __________________________. I did 60*20*50 and got 60,000 which is out of range by a few thousand...

useless · useless

These came off the series 990B test: 16) 7(6) + 57(7) + 8(11) = ___________________. I was wondering if there was a faster way than just combining the 7's and adding 88 to it... 21) Find the GCD of 132, 168, and 228 On this one, I took the difference between the first two, wrote down the...

kyniemxotxa · kyniemxotxa

23) #'s of positive integral divisors of 6^5 * 4^3 * 2^1. i get this down to 3^5 * 4^3 * 2^6, increased all exponents by 1 and multiply to get 168, but answer key said 78. *(60) the area of 14x^2 + 16y^2 = 224 is ____ (area of ellipse? using calculus?) (61) 555 * 6/37 = _________ (63) 431/...

useless · useless

I just finished the chemistry test today, and I must admit that it was a bit harder than I thought it would be. There were a bunch of non-calculation based questions that had me scratching my head. Luckily the free-response section was a breeze... Especially the bond geometry problem. That one...

Anonymous

Hey What school do u go to?

kyniemxotxa · kyniemxotxa

i saw this term in one of the threads...dont know if i'm missing out on something. can someone fill in for me?

Anonymous

Before i knew about this website i was making in the low hundreds and barely getting to #40 on a test. Now i am making in the high one hundreds and getting to #55 at least. I was wondering how to increase my speed though. Does anyone have any suggestions?

Anonymous

I am having a really hard time increasing my score. Anyone have any advice?

Topic		Started By	Replies	Views	Last Post
	Math Clubs (Preview) What does your school's math/science club do? How many people are involved? How long/often do you meet?	bradp	7	905	Sep 7, 2006 by bradp
	permutations combinations percents and normal lines (Preview) How many distinct 4 letter words can be formed from the letters TURKEY? Answer key says 6C4 (15).. i think it's 6P4 (360)? 6% of 14 2/7 = ? If f(x) = x^2 then the slope of the line normal to f at x = 1 is ?	bradp	3	724	Aug 8, 2006 by Anonymous
	calc app (Preview) The 06-07 stated/geometry problem list is posted on the uil site. Are all (or most) of the problems on the 06-07 tests going to be based off ones from this list?	bradp	0	677	Jul 27, 2006 by bradp
	Regionals 2003 (Preview) I was destroyed by this test: 152. What makes me sooo mad about it was that I wasted waaaay too much time on stuff that I eventually ended up getting wrong anyway... And that kept me from completing the easier last section of the test... But I can't stand skipping problems... It always messes with my mind...	useless	4	673	Jul 26, 2006 by vvr1590
	UIL CS (Preview) I have no knowledge of UIL CS but the scores in my district the past year were very low. I was wondering how long it would take to learn the basics of the UIL CS test and if there are any available web sites to learn the basics. Also, has anyone seen the UIL State Tests from 06 yet online?	Anonymous	6	795	Jul 26, 2006 by Anonymous
	more questions (Preview) 1) sin(15)cos(45) - sin(45)cos(15) I don't know much trig.. just some identities 2) 5^6 * 2^4 and also 4^5 * 5^5 for every 5 and 2 there's a 10... the multiply the remaining 2s and 5s to get the answer - is that the best way? 3) The next term of 1,4,11,26,57 The third finite differences of...	bradp	8	773	Jul 24, 2006 by bradp
	AP Results (Preview) Ah, might as well start a topic so people can post here too. Seems like AP results are mailed to the whole state of Texas today, how's everyone's everything? And if you want to say "wtf" or "holy sh--," go check Kieran's result. Here's my pathetically shortlist: Chem: 5, Eng3AP: 3, CalAB: 5, AP...	fht	3	848	Jul 10, 2006 by bradp
	A couple NS questions (Preview) I seem to have problems with these questions and can not find any simple way of doing them. (1) (4 7/12) * (2 2/5) (2) (2 2/5) * (5 1/6) -- (improper fraction) *(3) 12.75 x 28300 / 102 (4) the expansion of (2x - y)^5 has __ terms (5) the simplified coefficiant of the&nb...	The3point14	5	734	Jul 7, 2006 by fht
	HOLY CRAP! (Preview) I've been doing about 2-3 NS tests a day. I've figured out all sorts of cool problems, but this one beats me every time. If 125 = x^2 - y^2 and x > y are positive integers then x = ___________________ I figured this one out by thinking 15^2 - 10^2 = 125, but I did this rather arbitr...	useless	3	882	Jul 5, 2006 by bradp
	2 questions (Preview) 2004-2005 District 1 52) The number of terms in the expansion of (x+2y)^3 * (x-y)^2 is 57) (7/11) - (55/89)	bradp	3	644	Jun 27, 2006 by Anonymous
	More Math Questions (Preview) These came off the Rocksprings math contest, which was, for the most part, outstandingly easy. I scored a 252 on their scale. But with the 2 questions that the answer key had wrong, I scored a 268. Not bad, eh? Anyways, 31) What is the area of the circle formed when a plane passes 6-m from the ce...	useless	5	864	Jun 15, 2006 by bradp
	TMSCA Math Questions (Preview) This is off of the TMSCA 05-06 Test 2: 25) If log(base 9) x = klog(base 3)y . If y = x^a, then a = ______________ I did this: log(base 9) x = 2 log(base 3) x = ka log(base 3) x. You then get 2 = ka and 2/k =a. Thats wrong. The answer is 1/2k. I was wondering what I did wrong. 42) The slant asym...	useless	9	1816	Jun 13, 2006 by bradp
	2005 District II (Preview) Ug... This test just proved to me how slow at these tests. I only got to #34, but I only missed one. So that means 161 for me on that one. Anyway, I have some questions. 13) 216 square inches = _____________ square feet. I miss these EVERYTIME. How do you go from one to the other quickly? (Not just in squa...	useless	13	1066	Jun 9, 2006 by fht
	UIL Math Questions (Preview) I know, I know, this is supposed to be a NS board... But I really want to know how to do these accurately and quickly. 2004 Invite B 7) A triangle with side lengths 6, 6, and 8 is a ______________ triangle. How do you determine whether they're acute or not? Does it have to d...	useless	8	2585	Jun 9, 2006 by fht
	Is this a shortcut? (Preview) I saw about 10 problems in the form: (10a+b)(10a+(b-5)) like 71*74. Is the shortcut: 50a(2a+1) + b(b-5)? It seems that there should be a faster way. I do these by foiling, but if there is a faster way, I'd like to hear it. - Zack -	useless	9	1072	Jun 7, 2006 by useless
	mult 3 numbers (Preview) 14 x 24 x 34 (i created this one) i follow the steps on from the main page, reduce to 10 x (24 +(4+4+2)) x 30. which is 10200, 11% away from the acutal answer. is there a better, surer approach? how do i know when that method works?	kyniemxotxa	9	648	Jun 5, 2006 by bradp
	2 questions (Preview) 1) 3^14 / 7 has a remainder of... couldn't quickly find a repeating pattern as far as 3^1 mod 7, 3^2 mod 7 etc. 2) 60^2 + 48^2 - 12^2 (a+b)^2 + a^2 - b^2 = 2a^2 + 2ab quick way to do 2(48)^2 + 2(48)(12)?	bradp	15	1241	Jun 5, 2006 by fht
	Who's up for a psuedo-league? (Preview) I think Brad mentioned that he's taking every test from 1990-2006, which means enough tests to keep him occupied the entire summer: 5 tests / year * 16 years = 80 tests to take. Which means all summer long... I say that we all do the same, and keep up a test score log to see how we improve/stack up agai...	useless	4	780	Jun 1, 2006 by fht
	5% trick (Preview) how and when you know to use them? im not very advance, so step by step would be nice	kyniemxotxa	2	636	May 29, 2006 by useless
	Who? (Preview) I'm Mike Jones. Don't act like u don't know ma name. I'm Mike Jones. Who? Mike Jones. Who? Mike Jones.	Anonymous	4	718	May 29, 2006 by kyniemxotxa
	Tests... Tests... Tests... (Preview) Yeah, so I've come across about 8 different types of tests now: UIL, TMSCA, Best of Texas, Shootout, AMT, Hexco, Dr. Numsen, Ramierez, and that Numbahsenhei thing. I've noticed that the degree of difficulties on each test vary greatly... I was wondering what y'all thought of each one... Of all of t...	useless	4	1308	May 26, 2006 by useless
	Test WW - B (Preview) Not a good test for me... Made too many careless mistakes and got a 118. YUCK! Got to 38 and missed 8. Anyways... I have a few more questions 19) 9/5^4(2) = ________________ Decimal I did 9/10*125 Which was 9/1250 and then I multiplied by 4/5 and messed up. Whats the easier way? Or is there on...	useless	3	726	May 24, 2006 by fht
	990A Test! (Preview) Well... I'm happy about this test. I'm finally starting to see some marked improvement in my score. This test wasnt an easy one either, so yeah! But of course... I have a few questions. 20) 61 x 18 x 49 = __________________________. I did 602050 and got 60,000 which is out of range by a few thousand...	useless	4	559	May 24, 2006 by fht
	ITS QUESTION TIME AGAIN! (Preview) These came off the series 990B test: 16) 7(6) + 57(7) + 8(11) = ___________________. I was wondering if there was a faster way than just combining the 7's and adding 88 to it... 21) Find the GCD of 132, 168, and 228 On this one, I took the difference between the first two, wrote down the...	useless	15	768	May 24, 2006 by useless
	06' invite A (Preview) 23) #'s of positive integral divisors of 6^5 * 4^3 * 2^1. i get this down to 3^5 * 4^3 * 2^6, increased all exponents by 1 and multiply to get 168, but answer key said 78. (60) the area of 14x^2 + 16y^2 = 224 is ____ (area of ellipse? using calculus?) (61) 555 6/37 = _________ (63) 431/...	kyniemxotxa	3	618	May 21, 2006 by fht
	AP TESTS ARE OVER!! WOOT! ( 1 2 ) (Preview) I just finished the chemistry test today, and I must admit that it was a bit harder than I thought it would be. There were a bunch of non-calculation based questions that had me scratching my head. Luckily the free-response section was a breeze... Especially the bond geometry problem. That one...	useless	26	1983	May 20, 2006 by useless
	Question for Zack ( 1 2 ) (Preview) Hey What school do u go to?	Anonymous	29	3211	May 10, 2006 by Anonymous
	ELEMENTS OF NUMBER SENSE (Preview) i saw this term in one of the threads...dont know if i'm missing out on something. can someone fill in for me?	kyniemxotxa	3	1673	Apr 27, 2006 by mtrmth88
	How can i get faster? (Preview) Before i knew about this website i was making in the low hundreds and barely getting to #40 on a test. Now i am making in the high one hundreds and getting to #55 at least. I was wondering how to increase my speed though. Does anyone have any suggestions?	Anonymous	6	2997	Apr 27, 2006 by Anonymous
	Increasing my score (Preview) I am having a really hard time increasing my score. Anyone have any advice?	Anonymous	0	639	Apr 25, 2006 by Anonymous
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