yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Identifying hundredths on a number line | Math | 4th grade | Khan Academy


2m read
·Nov 11, 2024

Where is the point on the number line?

Here we have a number line that starts at 1.5, or 1 and 5/10, and goes to 1 and 7/10. The distance between these larger blue tick marks is 1/10th because we go from 1 and 5/10 to 1 and 6/10, so that went up a tenth, and then up to 1 and 7/10.

This distance here, this distance here is 1/10th, or we could write that as a decimal, 0.1, or as a fraction, 1/10th. That distance between each of these blue large tick marks is a tenth.

But we want to know what is this green point right here. So, to figure that out, we also need to figure out what these black tick marks represent, these smaller distances. From here to here is 1/10th, and within that tenth, there are 1, 2, 3, 4, 5, 6, 7, 8, 9, 9/10 equal spaces.

So, each of these little spaces is 1/100th of this distance. You see, it's one of the 10 equal spaces. So this right here is a this right here is a tenth of this tenth, because the large distance is a tenth, and this is 1/10th of that tenth.

Another way we could say that is a hundredth, a tenth of a tenth. If you take one tenth and divide it into 10 pieces, now you have a hundredth. So this distance is a hundredth, which means that each of these distances, this is another hundredth and another hundredth.

So how many hundredths till we get to our point? Let's see, 1 hundred, 2, 3, 4, 5, 6, 7. Seven hundredths is what it took us to get there, so we could say 7 hundredths, the fraction or the decimal is 0.07 with a 7 in the hundredths place.

So looking at the whole number line now, putting the whole thing together, we started at 1.5, or 1 and 5/10, and we went another 7 hundredths. So we can write that as plus 7 hundredths.

So we have 1 and 5/10 plus 7 more hundredths, which is a total of 1 and 57 hundredths, or 1.57.

So our point right here is at 1.57; 1 and 5/10 plus 7 more hundredths gets us to 1 and 57 hundredths.

More Articles

View All
The impact of constitutional compromises on us today | US government and civics | Khan Academy
When you first learn about the Constitutional Convention in 1787 and the debates and the compromises, it’s easy to assume that, okay, that’s interesting from a historical point of view, but how does it affect me today? Well, the simple answer is it affect…
How Growing Trees Helps Fight Poverty in Cameroon | National Geographic
[Music] Just imagine that you are a farmer in Cameroon. You spend all your life struggling to cultivate cocoa, coffee, and rubber, cutting which you don’t eat. They are called cash crops, and that’s where the problem lies. Big Industry fixes their prices,…
Why Are Bad Words Bad?
Hey, Vsauce. Michael here. When you call customer service and hear this, “to ensure quality service your call may be monitored or recorded,” they’re not kidding. Over the last year, the Marchex Institute analysed more than 600,000 recorded phone conversat…
Where Our Fear of Sharks Came From | Nat Geo Explores
(intense music) (water splashing) [Narrator] This can be scary, and rightfully so. Sharks have patrolled the waters for over 400 million years. And while they are powerful creatures, our stories have given them the reputation of being vengeful killers. …
Office Hours with Michael Seibel
Let’s start with the first question. Speaker: “Is about doing YC, the program, the core program that people know. A common question is: why is YC worth the 7%? What do you think?” Speaker: “So when I think about YC, and I talk to founders about it, ofte…
Worked example: Lewis diagram of the cyanide ion (CN⁻) | AP Chemistry | Khan Academy
In this video, we’re going to try to get more practice constructing Lewis diagrams, and we’re going to try to do that for a cyanide anion. So, this is interesting; this is the first time we’re constructing a Lewis diagram for an ion. So, pause this video …