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

Counting by tens | Counting | Early Math | Khan Academy


less than 1m read
·Nov 11, 2024

So we are told, let's count by tens, and we go 10, 20, blank, 40, 50, 60, 70, 80, 90, 000. What number did we miss? Pause the video. What number did we miss right over here? Well, if we're counting by tens, we would go 10, 20, 30, 40, 50, 60, 70, 80, 90, 100. So we're missing 30.

So which choice right over here has 30? Well, if we scroll down a little bit, we see right there that is our choice. Let's do another example. So here we are asked, which 10 frames show 20? A 10 frame is just a fancy word for one of these blocks of these frames that have 10 objects in it. You can see it right over here: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

So which of these 10 frames show 20? Well, 20 is two groups of 10. So this is 10, and then 20. So that's 20 right over there. Choice B is 10, 20, 30, 40. Choice C is 10, 20, 30. So we could feel good about choice A here.

We're told drag the 10 frames into the box to make 40. So let's see here: this is 10 right over there, then we get another 10 gets us to 20, then another 10 gets us to 30, and then finally another 10 gets us to 40. 10, 20, 30, 40. We're done.

More Articles

View All
WHAT ARE INVESTING MISTAKES YOU NEED TO AVOID? | Meet Kevin PT III
When you buy an asset that’s illiquid, like real estate, sometimes that is its diverse in the sense it’s a different asset class. But it does not provide for liquidity in times of stress. You need to understand where there’s risk. You can’t value every as…
YOU LIVE IN THE PAST
Hey, Vsauce, Michael here, and today we are going to be talking about the past. But not like history—in fact—we will be talking about what we call now. This very newest moment in time, and the fact that we can never really be aware of or live in what we c…
15 Biggest Threats to Your Financial Security
Have you ever felt like your financial security was walking a tightrope? It can feel like any small gust of wind, a sudden expense, a job hiccup, or an unexpected twist in life could throw everything out of balance. But what if you could see those gusts o…
Subject, direct object, and indirect object | Syntax | Khan Academy
Hello Chrome, Mary, and hello Rosie. Hi David! So, today we’re going to be talking about subject, direct object, and indirect object, identifying those within a sentence. But first, I suppose we should figure out what those things are. So, we’ve talked a…
What Does Mars FEEL Like?
Want to know what the surface of Mars feels like? Well, this is MGS1, a precision Martian regolith simulant used by NASA, ISRO, private space companies, and universities to simulate the ground on Mars. It’s manufactured by Space Resource Technologies righ…
Dinosaurs 101 | National Geographic
(Dramatic music) (Roaring) - [Narrator] Probably no other creatures on the planet have struck as much fear and awe in our hearts as the dinosaurs. (Roaring) The earliest dinosaurs appeared about 245 million years ago during the Triassic Period, when most …