Official December SAT Math Thread

<p>BT073011 I got s-r as biggest also.</p>

<p>bt073011, I also got s-r (or something like that). I know I ended up with a -1 though, maybe I got it wrong. Was it asking for the biggest number or the smallest number? LOL I am thinking about it now, and if it asked for the smallest number I completely did that wrong. If it was asking for the largest then I got -1.</p>

<p>backfire,</p>

<p>which test did you have? and i don't remember it saying x>1 in the problem</p>

<p>It definitely said X>1, otherwise several of the answers would have worked.</p>

<p>The one backfire had must have been the lobster one</p>

<p>I think I got... </p>

<p>"x and y are greater than 1, and x+y>xy......." which of the following value is not true this statement...</p>

<p>I plugged in all answer chocies... but I remember answer choice E is the only fit on the x+y>xy....
and I thought orignally the above statement is not true, so I found the answer that is revelvant....something like this....</p>

<p>and I GOT different answer choice with "Backfire's mentioned things.."
0,1 A
1,1 B
2,2 C
3,1 D
4,4 E
<- it's different......</p>

<p>OK. heres one. Does anyone remeber the question about how many numbers BEWTWEEN 99 to 1000 contain at least 1 digit that is a zero?</p>

<p>I think I had 171 as my answer for the zero in a slot question. I did it like this:
100,101,102,103,104
105,106,107,108,109
110,120,130,140,150
160,170,180,190
So you have 19 for each segment of 100. Repeat that 19 for 100s, 200s, 300s, 400s, 500s, 600s, 700s, 800s and 900s and you get 9*19, or 171.</p>

<p>Omg. i cannot believe i got that one right. I did the exact same method.</p>

<p>I did that way too dumbone.</p>