Official October 2019 SAT Math - No Calculator + Calculator

Watch me tear through the entire math section of the October 2019 Official SAT. I will be taking the test under timed conditions, which means you will learn how to approach and problem solve in real time as if you were taking the test. Join me for this power packed study session so you can boost your score in time for the next SAT!
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[@ammar6924]

I love the fact that he still reads the comments even though it's been 10 months since this was posted. My SAT is in a week, this was pretty helpful. Love how you not only solved it in time, but also gave the explanations within the same time limit.

[@ScalarLearning]

Awesome!! And thank you for the kind words as well.

[@arnavforschool]

December 7th gang where y’all at Edit: Good luck tomorrow everybody!!!

Here

[@poontycoon7354]

Heree

[@navysniper4391]

Crying but here

[@ScalarLearning]

Yeahhhhh!!!

[@Alan-ci2wj]

Good luck dude. Hope it is gonna be great!!!!!!!!!!!

[@inezding5710]

good luck everyone tmrw

[@zetec754]

thanks u too

[@SoulSlayingKing]

Thx fren u too

[@williams3174]

THANKS!!!!!

[@ScalarLearning]

Good luck to you too!!

[@asifaliyev5550]

How can I get December 2017 answer key

[@colonizingfear]

The thing is that the SAT is full of basic Algebra 1 & 2 problems, but the only issue many people really struggle with is how the SAT plays with it's words which makes the problem look harder than it actually is (This video definitely helped notice that).

[@ScalarLearning]

Yes you’re correct. Thanks for watching!!

[@rajdeepsingh180]

Learnt more in this video than in algebra 2, that's a little scary

[@ScalarLearning]

So glad it was helpful!! I'll take that as a massive compliment.

[@安妮Bei]

This was the hardest math section I've ever taken. Wonderful explanations!

[@rachelweng7934]

For number 38, you can just multiply 5 (the given mean score of group A) time 9 for group A to get 45 and for group B multiply 7 (given mean score for group B) times 11 to get 122. Then divide 122 by 20 to get 6.1, round to the nearest integer to get 6.

[@ScalarLearning]

That makes sense.

[@mariamomar9694]

You are sooo underrated.

[@ScalarLearning]

Thank you for saying that! You made my day.

[@boi4146]

guys for 36, you can simply just look at the pattern. 10 to 50 is 5, 20 to 200 is 10 and 30x15 is 450

[@ScalarLearning]

Very true!!

[@ayeshaaslam7927]

gave my oct test and got a 670 in maths. I wish I have seen these videos before going to the test center. going to retake in December.

[@whist6438]

for 36 you could have used quadratic regression function on the ti84. Just put the values in the list, and go to stat and do the regression, you get the equation and plug in.

[@beneastman9252]

Lmao I see you lookin up the fight card for tomorrow, you already know Diaz is going to bring home the W

[@ScalarLearning]

Yoooo you're a UFC fan?? I'm a massive Nate Diaz fan, let's go Nate!!

[@arnavforschool]

Too bad Masvidal snatched that W

[@sierrameih7409]

This video helped me so much thank you!!! I took it in October and I thought it was really hard but now that you explained it I realized how easy it actually was :) now i wish i can go back and take it again!!. I'm taking it again this week hopefully all goes well

[@ScalarLearning]

Awesome to hear! You're very welcome. And best of luck on this next test.

[@mohamedwael6590]

if i have for example 10 questions left in reading what do you recommend me to do put them all one letter like C or try to choose different letters for every question ?

[@ScalarLearning]

I would probably do that as there is roughly an even distribution of letters. That being said, statistically they are all independent events, so it shouldn't matter. But if you feel like you did really well on the rest of the test, I would choose the letter that is most underrepresented in your answers. Does that make sense?

[@akhilperuri7249]

For #10 on calc, if it said "could be true", would D be the answer?

[@ScalarLearning]

I think so, can't remember for sure though

[@chrischika7026]

For 24 shortcut is the best method but if people didn’t know that they could I use a system of equation solver I have one on my Calc and I use it if the system isn’t as easy

[@ScalarLearning]

That's a good point, thanks for sharing!

[@devinnguyen8451]

Question 30 : Why can’t statement II be right? If you plug 5 for b then ab = 9x5 = 45 which is different than 5 => no solutions.

[@shadycactus7896]

Question: in number 10 of the no-calc section, we immediately eliminated choices B, C and D because that would be impossible to test it out without a calculator? Or is there some other trick I don't know about

[@arnavforschool]

For number 18 in the no Calc section how did you eliminate radx + 1 = 0 as not being a possible value

[@anaccarrillo9742]

Because when you isolate for radx the equation will equal to -1 which is impossible

[@ScalarLearning]

The comment below is correct. Thanks for watching!!

[@ScalarLearning]

Thank you!

[@moeezshiraz4580]

Thanks! Your videos are really helpful.

[@ScalarLearning]

You're very welcome, thanks for watching and subscribing!!

[@zahel__]

How do you feel the curve will be for the SAT today? I personally thought the reading was absolutely brutal so I'm hoping for a generous curve on that. But I feel both math sections and English were pretty average so I'm kinda nervous...

[@ScalarLearning]

I'm not sure unfortunately, I didn't take this test and I haven't heard many details about it yet.

[@mikiii333]

For number 25 in the calculator section I used the numbers 1,2,3,4 but the sum for the two datas wasn't the same. How do I know which numbers to use?

[@ScalarLearning]

It’s based on the language that is used, it’s very specific that we are only in the top category in terms of the total. Does that make sense?

[@mikiii333]

Scalar Learning I don’t really get it, I think I typed number 17 by mistake but I really meant number 25 can you reexplain please?

[@ScalarLearning]

The problem is if you use 1 2 3 4 you need a stable median, like 2.5. Or just some median in the middle. Then you would subtract 7 from 1 and 2 and add 7 to 3 and 4. Then you will realize that the median, mean, and sum will not change.

[@mikiii333]

Scalar Learning Thanks A lot!

[@ricardoarielalvarengagarci6443]

I didnt understand the last part of question 12. Why did you use 3 and 1? How can a factor when I have a coefficient like 2 in this case?

[@ScalarLearning]

You can still factor with a coefficient, just make sure to test the values when you foil.

[@studywithsam111]

does the difficulty vary amongst different papers overall? how difficult is this one compared to most?

[@ScalarLearning]

Yes it does vary, but marginally. Not major differences in general.

[@tanvir731]

Is there another way you could solve #18 for the no calculator section?

[@ScalarLearning]

Yes probably.

[@mariamomar9694]

You make it seem so easy.

[@ScalarLearning]

That's the goal, because you have the power to achieve the same mastery with time and practice.

[@nadanegm8260]

Number 18 in the calc . Section. Sir why didn't I divide the total of each age by 1600 ? When do I know that I'm not dividing by the total number of the data , instead by a part of it as in 18?

[@ScalarLearning]

Because the language in the question limits the total. When they say "percentage of 18-50" immediately the total value is limited to 18 to 50 year olds.

[@ryanding1884]

Hi, I did question 36 by using ratio 10s : 50 m = 1:5 20s: 200 m = 1:10 therefore 30s: X = 1:15 and 30 times 15 = 450 meter Hope this is one of the fastest and correct way to do it :) btw love your video!

[@ScalarLearning]

Very good, that works!

[@jeetv75]

I had a question, I just bought the SAT Black Book without realizing that I bought the first edition, designed for the old sat. Can I use it to prep for the new sat?

[@ScalarLearning]

I would strongly advise against that. Your best bet is to use Khan Academy as it's free and super up to date.

[@alvinwright4311]

Thanks very much for this video sir. These videos are extraordinarily helpful. Everyday, i keep learning new things and mathematical strategies and tactics from your videos and I highly appreciate your help. Once again, thanks very much

[@ScalarLearning]

You’re very welcome!! So glad they have been helpful.

[@ScalarLearning]

You’re very welcome!!

[@rosealeecooper3374]

Why did you add a half for question 14 to 2/5? . I mean how did you decipher the root r has an exponent of half

[@ScalarLearning]

Square roots are 1/2 power.

[@saifluay3921]

On question 28 in the Calculator section how did we get 2√3?

[@ScalarLearning]

Because the shaded triangle splits into a 30-60-90 degree triangle, you apply those associated special triangle rules

[@julianas4502]

Where can I download this practice test?

[@ScalarLearning]

You can't unfortunately.

[@andrjsjan4231]

@@ScalarLearning where did you find it then?

[@montaignedarbyjeannoel5075]

i don't understand the #4 in the No calculator section specially when you say: the four hour shift is a red hearing. Please let me know why.

[@ScalarLearning]

Red herring means the info is useless to solving the problem. Does that make sense?

[@montaignedarbyjeannoel5075]

@@ScalarLearning thanks I get you

[@Saturnlinguinie]

How is he sooo ahead of time even after speaking so muchhhh

[@ScalarLearning]

Practice

[@Alan-ci2wj]

Hey , Bro thank you very much for your videos. I just wanted to ask you. I am getting almost perfect on my practice tests , so is it gonna be the same on the test? And what do you suggest me to do a day before the test

[@ScalarLearning]

Yes they will be very similar. How did it go?

[@Alan-ci2wj]

@@ScalarLearning I could not manage to answer the last question, but, generally, I think it would be okay

[@ayeshaaslam7927]

@@Alan-ci2wj what did you score?

[@saas4987]

hey where can i find pdf of october or december sat in 2019?

[@ScalarLearning]

I think on Reddit.

[@bredan8084]

my sat is tomorrow, any quick tips if I'm not sure of a question? (or if i don't know how to solve at all?)

[@ScalarLearning]

How was it?

[@Zealpatel2004]

for number 29 why is option 2 wrong why cant B be 5

[@ScalarLearning]

It doesn't work, just try plugging in 5 for m and see what you get. You won't get 156 like you're supposed to.

[@dianaduran8166]

do you think the December one will be harder ?? 😭 because this one was really easy

[@ScalarLearning]

Sorry for the late reply. How was it?

[@dianaduran8166]

Personally for me it wasn’t hard but I feel like math was a little bit harder but by the end

[@greeshmajohn9650]

for #12, how do the denominators cancel?

[@eliyahwatson7502]

hey huzefa i really did not understand 36 can you explain it a little more or somebody? thanks!

[@ScalarLearning]

Can you give me a more specific question?

[@fatimitanr02]

@@ScalarLearning How did you know to use a quadratic and not an exponential?

[@Toneza35800]

On question 11, i put x+3=2x-6 and get the same answer. Did i do wrong and accidentally get the correct answer?

[@Toneza35800]

Also on q30, if b can be anything except 5/9 then b=5 is also correct?

[@NM-cm5xy]

Is there another way to solve question no. 18 in no calculator section?

[@ScalarLearning]

There are always a few ways to solve a problem, so if you can come up with alternative method that is successful, all good.

[@noahjackson7227]

Scalar Learning I made sqrt x equal U and I got the same answer

[@pratyush511]

Could you please explain 12:21 ?How did you get the slope?

[@ScalarLearning]

The slope of the equation is the value multiplying the x. The slope of the lines is the amount the line rises divided by the amount it goes right (for any two given points).

[@pratyush511]

Scalar Learning thanks a ton

[@nadanegm8260]

That was helpful . Thank you

[@ScalarLearning]

You're very welcome!!

[@michelinemaurice8928]

Can you explain how you got positive 16 @24:58

[@ScalarLearning]

It's really a -6 + a -10. Think about a minus sign as a negative symbol, nothing more.

[@hannahlisew]

do you have a score conversion chart for this test?

[@ScalarLearning]

No but you should be able to find one online hopefully

[@sujaishan7806]

How did you know that number 36 was a quadratic equation instead of a linear one

[@ScalarLearning]

Because it wasn't progressing by a set constant.

[@ericlin5457]

If I get a 1500 on my March SAT, it is because of you.

[@ScalarLearning]

Best of luck, please keep me posted!!

[@zekooziedan9155]

Can you please answer november2019usa exam and explain it

[@ScalarLearning]

Sure I just have to find it on Reddit.

[@zekooziedan9155]

Scalar Learning :thank you for your effort❤️❤️❤️

[@salma4075]

I dont get 14 in the calculator section

[@ScalarLearning]

Can you give a more specific question?

[@20samwiches]

Is it true that October SATs are harder than March SATs?

[@ScalarLearning]

No that's nonsense, I'm making a video about dispelling this myth.

[@20samwiches]

Looking forward 😅

[@jeromeagwu8999]

Where did you get these practice tests sir?

[@ScalarLearning]

Reddit

[@lifewithmariam7351]

Can you solve the international one also please 🌸

[@ScalarLearning]

Yes, can you send it to me?

[@lifewithmariam7351]

@@ScalarLearning thank you so much but where do I send it?

[@rayofsunshine7343]

hey, can you send it to me too?

[@selinaltiparmak8858]

Can u send it to me as well [e-mail]

[@vandanamakar]

for 36 why not try speed , distance and time formula , the speed increases by 5 every time , so 15x30=450

[@ScalarLearning]

Fair point, good observation.

[@aida903]

Thanks!

[@tabithaakoto4469]

how do u get acess to this

[@ScalarLearning]

Only if you've taken the test.

[@aisuluzhurginbai5331]

march 13 gang, good luck!

[@ScalarLearning]

GL!!!

[@kacperkaczmarczyk7456]

Good luck too!

[@sofianegeullouma3321]

I cant read the questions and the propositions in the same time 😕

[@ScalarLearning]

I'm sorry about that.

[@sofianegeullouma3321]

@@ScalarLearning dont be sorry i learn a lot from you thanks

[@edgarabramian3800]

pleas share the pdf

[@ScalarLearning]

You should be able to find on reddit

[@h1gh3xp_baby92]

arent the math no calculator questions in this vid actually much harder than the real SAT?? ive done around 6 practice test, a few from khan academy and a few from Princeton, they arent this hard

[@ScalarLearning]

No this one is pretty accurate bc it's a real test

[@theultimategamer4187]

I just took this section it felt a lot harder then every other sat practice test that i took but in the video he said it was one of the hardest sections he has taken so hopefully your and mine wont be this bad

[@h1gh3xp_baby92]

@@theultimategamer4187 yeah i did my SAT a couple days ago and the math was much easier, pretty sure ill get like a 750 but i wanted to over pratice, itll only help

[@rominnoodles]

Can you do 2020 sat math before March 4th

[@ScalarLearning]

Lot's of SAT Math is coming this year!!

[@rominnoodles]

@@ScalarLearning Nice

[@jeremiahsanimations5327]

goodluck

[@ScalarLearning]

How did it go?

[@godmode7905]

True champ

[@ScalarLearning]

Thank you!

[@godmode7905]

Scalar Learning My SAT is on 14th March. I have only done the concepts I’ve seen from Test 1 to Test 10 and I’ve watched 2019 OCT video. Any tips how I secure a perfect score?

[@akhilperuri7249]

Good luck saturday

[@ScalarLearning]

How was it?

[@akhilperuri7249]

@@ScalarLearning It was good (1410-680 EBRW/780M), but I have a lot of room for improvement in reading for this upcoming March SAT

[@goharsyed5244]

This helped a lot, Lets get it on December 7th

[@ScalarLearning]

Best of luck on your score!

[@faazusman4423]

people who have done physics in AS level or mechanics will find question 36 easy because we can just use the SUVAT equations. S=ut+1/2at^2

[@ScalarLearning]

Fair point!

[@happypappy2188]

I think any 5th grader with any education could’ve scored a 20/20 on this no calc

[@ScalarLearning]

It was one of the easier ones.

[@DianaSchneider-p3k]

☺️☺️

[@Quartze-qh1rk]

you are way to fast which makes it hard to understand

[@ScalarLearning]

kzbin.info/www/bejne/q2Kbf6ahrriYiZI

[@chuckc3665]

your methods are too slow try to use more efficient way