Understanding Tens and Ones

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What do we call the two positions in a two-digit number?

They are called the 'tens' place (on the left) and the 'ones' place (on the right).

In the number $47$, which digit is in the tens place?

The digit $4$ is in the tens place.

In the number $47$, what is the value of the digit in the tens place?

The value of the $4$ is $40$ (four tens).

In the number $63$, which digit is in the ones place?

The digit $3$ is in the ones place.

In the number $63$, what is the value of the digit in the ones place?

The value of the $3$ is $3$ (three ones).

How would you write the number that has $5$ tens and $2$ ones?

$$ 52 $$

How would you write the number that has $8$ tens and $0$ ones?

$$ 80 $$

How many ones are there in one ten?

There are $10$ ones in one ten.

Look at the number $28$. How many tens and how many ones does it have?

It has $2$ tens and $8$ ones.

What does this image show?

This image shows base ten blocks. The long rods represent 'tens' and the small single cubes represent 'ones'. They help us visualize numbers.

Using base ten blocks, how would you represent the number $34$?

You would use $3$ ten-rods and $4$ one-cubes.

What number is represented by $2$ ten-rods and $8$ one-cubes?

The number $28$.

Using base ten blocks, how would you represent the number $72$?

You would use $7$ ten-rods and $2$ one-cubes.