Lesson video

Hello, everybody.

It's Miss Sidhu here again with some great maths.

I know you did some wonderful learning yesterday and we were ordering the numbers by drawing the 10s.

Today I want you to remember all of that information that you did so that we could do some more ordering.

Now, today we are going to be learning to order numbers within 100.

This is lesson nine for the topic of numbers to 100 and beyond.

You will need a paper and a pencil.

There are times when you will have to pause the video to have a go at some of the activities yourself.

Now let's get started.

Today we're going to look at a quick starting quiz to remember ordering the numbers from greatest to the least value, some key vocabulary, which is our star words.

Then we're going to do some ordering numbers from the greatest to the smallest within 100, and then ordering numbers from the smallest to the greatest within 100, an independent task to see what you have learned, and some answers to check that you've done it correct.

And then finally a quiz to see all that information that you've learnt today of comparing numbers, and see how we do.

Now let's get started.

Let's do our star words.

♪ Star words, star words ♪ Remember, I will say the word first, and then you will say it after.

Greater.

Greater value.

Less.

Least value.

Compare.

Equal to.

Super.

Lots of these words we used yesterday too.

Now I want you to pause the video to complete your start of lesson quiz.

Once you've finished, then you can restart the video.

Now let's get started.

Here I have some numbers.

I want you to have a look at them.

All of the numbers are within 100.

Let's say the numbers together.

73, 90, 41, 19.

We need to order our numbers from the least value to the greater value.

I know from our previous lesson that we need to draw the lines for the 10s underneath each number.

So let's have a look at drawing the 10s together.

Can you help me? No? Can you help me? Let's shout it nice and loud.

Yes, thank you.

I love when you help me with my maths.

Now let's count to 73 has one, two, three, four, five, six, seven, 10s.

90.

90 has one, two, three, four, five, six, seven, eight, nine 10s.

41 has one, two, three, four 10s, and 19 has one 10.

Now we need to order them from the smallest value to the least value to the greater value.

Now we can see the 10s.

We can put the numbers in order.

I know that 19 has one 10, and that means it has the least value.

So 19 will go first.

Hmm, I wonder what number will go next.

What number do you think will go next? That's right, the number 41.

Because when I count on my 10s from one to 10, if I go one 10, two 10, three 10s, four 10s, 41 has four 10s.

So 41 goes next.

Hmm, I wonder what number will go after 41.

It must be 73 because 73 has seven 10s, which is less than nine 10s.

So 73 goes next, and then at the end we have the number 90.

90 has nine 10s, which has the most 10s out of all of those numbers.

90 has the greatest value.

You've done such a super job of counting all the numbers and then comparing the numbers, and putting them in order from the least value to the greatest value.

I wonder if you can help me with some of the next numbers that we have.

Here we've got some more numbers.

Can you say the numbers with me? 26, 81, 59, 96.

I think we've done some super, super maths.

I don't think we need to draw the lines for the 10s this time.

I want you to use all of your number knowledge and skills to help you to count the 10s without drawing the lines.

Now let's see if we can try this together.

Hmm, let's look at the 10s.

So 26 has two 10s, 81 has eight 10s, 59 has five 10s, and 96 has nine 10s.

We need the one with the greatest value.

The biggest number of 10s.

Hmm.

I know.

96 is the greatest number because it has the most 10s.

It has nine 10s.

That means it's the furthest away from zero on a number line.

That must mean it comes first.

Hmm, I wonder what number comes next.

81 will come next on our line from greater value to the least value because 80 is only one 10 away from 96.

So 81 will go next.

Hmm, I wonder what will go next after that.

That's right.

59 has five 10s and nine ones, and that's less than eight 10s, but it's more than two 10s on 26, and 59 comes next.

And the number with the least value is the number 26 because it only has two 10s.

Great work, everyone.

I wonder if you can help me with doing some more numbers before we do our independent task.

Let's see if we can order these numbers from the least value to the greater value.

Let's say the numbers together.

Can you say them nice and loud for me? Here we have the numbers 13, 51, 31, 15.

We're going to order the numbers from the least value to the greater value, which means we need to start with the smallest number.

Let's look at the 10s.

Uh-oh.

There's two numbers, which both have one 10.

Oh no.

What should I do now? Do you think you can help me? Let's explore this together.

The number 13 and 15 both have one 10.

Here we've got two place value charts, and I know in our previous lessons, we've looked at both the 10s and ones of numbers.

I need to look at the 10s, but they both have one 10.

So now I need to look at the ones.

When the 10s are the same, we look at the ones.

Let's say that together.

When the tens are the same, we look at the ones.

Have a look at the place value charts.

Here we've got the number 13.

We know that 13 has one 10 and three ones.

One, two, three.

Three ones.

And here we have the number 15.

It has one 10 and five ones.

One, two, three, four, five.

Five ones.

When we compare the ones, the three ones and the five ones, we know that the number three is less than five.

And I know that five is a bigger number than three.

So that means the number 13 is the smallest number.

So it has the least value.

So when we look at the numbers, so 13 has the least value and then 15.

We need to put the other numbers in order, the 51 and the 31.

Which one has the greater value? 51 or 31? We don't need to look at the ones because they have different amounts of 10s.

Let's have a look if you've got it correct.

Super.

We start with 13.

It has one 10 and three ones.

Then the next value is 15 because it has one 10 and five ones.

Then the next number is 31 because three 10s is greater than one 10, but it's less than five 10s.

And then 51 has the greater value because it has five 10s, which has the most 10s out of all of the numbers.

Super duper work, everybody.

I think that we are ready for our independent task.

Do you think you're ready to start? Let's get started.

So our independent task today is to order the numbers from the least value to the greatest value.

You can use your Dienes or draw the 10s if you want to, but let's see if you can do it using our number knowledge, looking at the 10s first.

But when the 10s are the same, we look at the ones.

Then I want you to order for task two, order the numbers from greatest value to the least value using our number knowledge.

Good luck with all the number ordering.

Now let's look at the answers.

These are the numbers from the least value to the greatest value.

See if you got them correct.

Now task two, we had to order the numbers from the greatest value to the least value.

How did you do? Did you get them all correct? Super duper maths.

Now, I hope you had lots and lots of fun today with ordering all of the numbers.

Now I want you to complete your end of lesson quiz seeing if the numbers are in order.

You might have to say if they're true or false.

Bye.