ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Math Videos 1246 videos
SAT Math: Statistics and Probability Drill 1, Problem 2. If the four largest numbers in the set were doubled, what would happen to the median...
SAT Math 1.4 Statistics and Probability. If two standard 6-sided dice are rolled, what is the probability that the sum of the dice will be gre...
SAT Math 1.5 Statistics and Probability. If Silas draws one card, then places it in his pocket and draws another, what is the probability that...
ACT Math 2.3 Pre-Algebra 2859 Views
Share It!
Description:
ACT Math: Pre-Algebra Drill 2, Problem 3. Which of the following numbers is smallest?
- Pre-Algebra / Ordering numbers from least to greatest and greatest to least
- Pre-Algebra / Absolute value
- Product Type / ACT Math
- Foreign Language / Arabic Subtitled
- Foreign Language / Korean Subtitled
- Foreign Language / Chinese Subtitled
- Foreign Language / Spanish Subtitled
- Pre-Algebra / Absolute value and ordering numbers by value
Transcript
- 00:03
Here's an unshmoopy question you'll find on an exam somewhere in life...
- 00:06
Which number is smallest?
- 00:08
And here are the potential answers...
- 00:14
So what's this question asking?
- 00:16
Absolute value, converting fractions to decimals... and, well... really number lines? Just when
Full Transcript
- 00:21
you thought it was safe to go back into your algebra textbook...
- 00:25
The best way to solve this one is to just... draw a number line. The reality is that all
- 00:29
of these numbers are somewhere between 5 and 6.
- 00:31
So... when we absolute value...ize a number, we get rid of the negative.
- 00:36
Then we just need to figure out how far that number is from the origin.
- 00:40
In this case, the first term -- absolute value of negative 6 -- is just... 6.
- 00:45
It lives right here.
- 00:46
5 and a quarter is 5.25, since 1 divided by 4 is 0.25.
- 00:52
We do the same for 5 and 2/3. Two divided by 3 is point-666... roughly the devil's number.
- 00:59
Answer D is already decimalized... and the 5.2 lives here.
- 01:03
And lastly we have 5 and an eighth. One divided by 8 is 0.125... and 5.125 lives here.
- 01:12
So the answer is 5.125... choice E.
- 01:15
As in, "Everybody out of the water!"
Related Videos
ACT Math: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?
ACT Math: Coordinate Geometry Drill 1, Problem 1. Which inequality is expressed by the number line?
ACT Math: Intermediate Algebra: Drill 3, Problem 1. Find the fifth number in the series.
Who wants to be a millionaire? In this video, learn about compound interest, interest rates, and the compound interest formula. You'll be buying th...
ACT Math: Pre-Algebra Drill 5, Problem 2. If a and b are prime numbers, how many factors does ab have?