Understanding Place Value Base-Ten Models. I have 1 hundred and 1 ten. What number am I?

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Understanding Place Value

Base-Ten Models

I have 1 hundred and 1 ten. What number am I?

1 hundred 1 ten 0 ones

I have 1 hundred and 1 ten. What number am I?

I have 2 tens and 8 ones. What number will I be if you add 4 tens?

10 20 30 40 50 60

61626364

65666768

I have 1 hundred, 5 tens, and 2 ones. What number will I be if you take away 5 tens?

1 hundred 0 tens 2 ones

I have 1 hundred, 5 tens, and 2 ones. What number will I be if you take away 5 tens?

I am the greatest even number that has 3 tens. What number am I?

What’s the greatest number of hundreds I can have?

How many tens?

What’s the greatest number of ones I can have and still be even?

I am the greatest even number that has 3 tens. What number am I?

9 hundreds 3 tens 8 ones938

I have 23 ones. What number am I?

2 tens 3 ones

I have 23 ones. What number am I?

I have a dozen tens. What number am I?

1 hundred 2 tens 0 ones

I have a dozen tens. What number am I?

Can you show 23 with your blocks?

Let’s write this number in expanded form. What is the value of each group of blocks?

20 + 3 = 23

2 tens is 20.

3 ones is 3.

Can you show 145 with your blocks?

Let’s write this number in expanded form. What is the value of each group of blocks?

100 + 40 + 5 = 145

4 tens is 40.

5 ones is 5.1 hundred is 100.

Use Your Noodle Questions:

• How many different ways can you show 21?

• I have 3 blocks. The blocks can be of any value. What could one total value be? What are all the possible values I could have?

Noodle Questions are from Creative Publications 20 Thinking Questions for Base Ten Blocks (Grades 2-3). ISBN 1-56107-792-5

Great Job!

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