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1.08 3 digit numbers in expanded form

Lesson

Are you ready?

So far, we have seen how to read, write and use place-value blocks to make $3$3 digit numbers. 

What number is represented by these blocks?

Vocabulary:
  • Another word that we can use to describe the ones place is 'units'.

Learn

This video looks at how we can break up numbers with place value, and how we can use that to solve problems.

Apply

Question 1

Fill in the boxes with the missing numbers.

  1. $627=\editable{}+20+\editable{}$627=+20+

 

Learn

This video shows you how to use a number expander to write a number in different ways. Why not try making a number expander with paper?

Apply

Question 2

We have written the number $705$705 in a number expander.

Fill in the boxes below to make the sentences correct.

  1. This number is made up of $\editable{}$ hundreds and $5$5 ones.

  2. We can also write the number using only tens and ones.

    Writing it this way, $705$705 is made up of $\editable{}$ tens and $5$5 ones.

 

Remember!

Even though we might think of $500$500 as $5$5 hundreds, we can also think of it as $50$50 tens, or $500$500 units. 

Outcomes

4.NBT.2

Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two multi-digit numbers based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.

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