ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Basic Operations Videos 58 videos

Operations with Rational Expressions
8687 Views

It's impressive that these expressions are able to stay so rational even when they're having operations performed on them.

Numbers and Operations: Elementary Number Theory
605 Views

Jack and Jill went up the hill to fetch a pail of water. But what happened when they got up there? They’ve been gone an awfully long time…

SAT Math 7.3 Algebra and Functions
318 Views

SAT Math 7.3 Algebra and Functions

See All

CAHSEE Math 1.3 Number Sense 453 Views


Share It!


Description:

CAHSEE Math Number Sense: Drill Set 1, Problem 3. Which of the following numbers is the largest?

Language:
English Language

Transcript

00:03

Here's a boring, unshmoopy question you'll find on some exam somewhere in life...

00:08

Which of the following numbers is the largest:

00:10

Here are the potential answers...

00:19

So... in this scientific notation problem, there are a few we can rule out real quick.

00:24

Note that A and B are taken to the NEGATIVE power of 2...

00:27

...which means that they are small numbers...

00:30

...even though in A's case, it starts out with a big fat 12 to the left of the decimal.

00:34

That negative exponent means there's going to be some shrinkage.

00:40

So that leaves us with C and D.

00:43

In this case, both are only 10 squared, which we know is 100.

00:48

So for C, we have 1.23 x 100, which is just 123.

00:53

And in option D, 0.123 times 10 squared means that we shift the decimal two places to the

01:00

right to get 12.3.

01:02

So C is bigger and yep, that's the answer.

01:06

Now if you'll excuse us, we're going to try consoling options A and B.

01:10

They have positive exponent envy.

Related Videos

CAHSEE Math 5.3 Algebra and Functions
2032 Views

CAHSEE Math: Algebra and Functions Drill 5, Problem 3. Solve the equation.

Simplifying Radicals
9738 Views

We don't like knocking people down to size, but we do like simplifying radicals. Join us?

Arithmetic Math
2249 Views

If fleeing criminals always fled the scene of the crime at perfect right angles, it would be much easier to determine their whereabouts. Fortunatel...

Basics of Game Theory
882 Views

Okay, so this probably isn't going to help you master Pokemon Go, but game theory can be applied to all sorts of situations. Even stomping your old...