ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Playlist ACT® Pre-Algebra 34 videos
ACT Math: Pre-Algebra Drill 1.2. What proportion of Jenna's day is spent Wii-swimming?
ACT Math Pre-Algebra Drill 1, Problem 3. Can you find the product of two square roots?
ACT Math 2.3 Pre-Algebra 2851 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: Pre-Algebra Drill 5, Problem 2. If a and b are prime numbers, how many factors does ab have?
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...