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Place Value: Ones, Tens & Hundreds
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 About place value with Ones, Tens and Hundreds.
 That any 3digit number can be broken down into groups of hundreds, tens and ones.
 How this knowledge can help us have a bake sale, make fruit juice, and even make our very own ball pit!

Discussion Questions

Before VideoShow students 4 tens blocks. Ask students to write the number that is represented by the blocks.ANSWER

40.

52.

4 tens blocks and 7 ones blocks.

8 tens or 80; 8 is in the tens place, so its value is 8 tens or 80.

When I add 1 to 79, I add 1 to the 9 in the ones place and get 10. I write a 0 in the ones column and regroup 10 ones as 1 ten. Now I have 8 tens or 80. So when I add 1 to 79, I get 80.


After VideoWhat is the value of each digit in 378? How do you know?ANSWER

The digit 3 has a value of 3 hundreds, or 300, because it is in the hundreds place. The digit 7 has a value of 7 tens, or 70, because it is in the tens place. The digit 8 has a value of 8 ones, or 8, because it is in the ones place.

2 hundreds blocks, 5 tens blocks, 6 ones blocks.

405.

425; there are 12 tens. I can’t write a 2digit number like 12 in the tens place, so I write 2 in the tens place and regroup 10 tens to be 1 hundred. Now I have 1 more hundred in the hundreds place.

When I add 1 to 399, I add 1 to the 9 in the ones place and get 10. I write a 0 in the ones column and regroup 10 ones as 1 ten. Now I have 10 tens, so I write a 0 in the tens column and regroup 10 tens as 1 hundred. Now I have 4 hundreds. So when I add 1 to 399, I get 400.



Vocabulary

Place value
DEFINE
The value of a digit is based on its position in a number.

Ones
DEFINE
A place in the placevalue system that has a value of 1.

Tens
DEFINE
A place in the placevalue system that has a value of 10.

Hundreds
DEFINE
A place in the placevalue system that has a value of 100.

Digit
DEFINE
A numeral from 0 to 9 that forms part of a number.

More
DEFINE
A greater number has more. When you have 10 more than a number, you are adding 10 to that number.

Fewer
DEFINE
A lesser number has fewer. When you have 10 fewer than a number, you are subtracting 10 from that number.

Place value
DEFINE

Reading Material
Download as PDF Download PDF View as Separate PageWHAT IS PLACE VALUE ONES, TENS & HUNDREDS?1 ten is the same as 10 ones. 1 hundred is the same as 10 tens. In the number 324, the 3 is in the hundreds place. Its value is 300.
To better understand place value: ones, tens & hundreds…
WHAT IS PLACE VALUE ONES, TENS & HUNDREDS?. 1 ten is the same as 10 ones. 1 hundred is the same as 10 tens. In the number 324, the 3 is in the hundreds place. Its value is 300. To better understand place value: ones, tens & hundreds…LET’S BREAK IT DOWN!
Fruit Punch: Strawberries
99 has 9 tens and 9 ones. Add 1 more one. 9 tens and 10 ones is the same as 10 tens. 10 tens is 1 hundred. 103 has 1 hundred, 0 tens, and 3 ones. Try this one yourself. You have 1 hundreds block and 2 ones blocks. How many blocks do you have? How many strawberries do you have?
Fruit Punch: Strawberries 99 has 9 tens and 9 ones. Add 1 more one. 9 tens and 10 ones is the same as 10 tens. 10 tens is 1 hundred. 103 has 1 hundred, 0 tens, and 3 ones. Try this one yourself. You have 1 hundreds block and 2 ones blocks. How many blocks do you have? How many strawberries do you have?Fruit Punch: Blueberries and Raspberries
You need 123 blueberries for fruit punch. 123 is 1 hundred, 2 tens, and 3 ones. You need 157 raspberries for fruit punch. 157 is 1 hundred, 5 tens, and 7 ones. Try this one yourself. How do you show 143 blackberries with baseten blocks?
Fruit Punch: Blueberries and Raspberries You need 123 blueberries for fruit punch. 123 is 1 hundred, 2 tens, and 3 ones. You need 157 raspberries for fruit punch. 157 is 1 hundred, 5 tens, and 7 ones. Try this one yourself. How do you show 143 blackberries with baseten blocks?Ball Pit
There are 359 balls in a ball pit. 359 is 3 hundreds, 5 tens, and 9 ones. Add 1 more ball. Now there are 360 balls in the ball pit. Another pit has 599 balls. Add 1 more. Now there are 600 balls in the ball pit. Try this one yourself. Show 406 with baseten blocks.
Ball Pit There are 359 balls in a ball pit. 359 is 3 hundreds, 5 tens, and 9 ones. Add 1 more ball. Now there are 360 balls in the ball pit. Another pit has 599 balls. Add 1 more. Now there are 600 balls in the ball pit. Try this one yourself. Show 406 with baseten blocks.Cupcakes
You have 230 cupcakes. The 2 is in the hundreds place. You can make 2 groups of 100 cupcakes. The 3 is in the tens place. You can make 3 groups of ten cupcakes. Try this one yourself. How many trays that hold 100 and how many trays that hold 10 do you need for 540 cupcakes?
Cupcakes You have 230 cupcakes. The 2 is in the hundreds place. You can make 2 groups of 100 cupcakes. The 3 is in the tens place. You can make 3 groups of ten cupcakes. Try this one yourself. How many trays that hold 100 and how many trays that hold 10 do you need for 540 cupcakes? 
Practice Word Problems

Practice Number Problems

Teacher Resources
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Science & Math$_{/yr}

Science Only$_{/yr}
Represent 125 with baseten blocks. Draw a picture.
Draw 2 hundreds blocks and 3 ones blocks. Ask students to write the number that is represented by the blocks.
Draw 3 hundreds blocks, 15 tens blocks, and 7 ones blocks. Ask students to write the number that is represented by the blocks and explain their answer.
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