How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3...
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![Page 1: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/1.jpg)
How to represent numbers using “quick
hundreds” “quick tens” and “quick ones”
Unit 3 Math Expressions
![Page 2: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/2.jpg)
Place value is where a digit is placed in a whole number. Each digit has a specific “value” or amount depending on where the
digit is (ones’ place, tens’ place, hundreds’ place).
![Page 3: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/3.jpg)
Numbers, such as 84, have two digits. Each digit is a different
place value. The left digit is the tens' place. It tells you that there are 8 tens.
The last or right digit is the ones' place which is 4 in this example. Therefore, there are 8 sets of 10,
plus 4 ones in the number 84. 8 4
tens' place ones' place
![Page 4: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/4.jpg)
Another example…
65 “6” is in the tens’ place. “5” is in the ones’
place.
![Page 5: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/5.jpg)
Let’s see a bigger number…
142“1” is in the hundreds’ place. “4” is in the tens’ place. “2” is in the
ones’ place.
![Page 6: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/6.jpg)
How could you draw different numbers with pictures?
If your teacher asked you to draw the number 143- would you want to draw 143 different objects? That
would take a long time! There is an easier way to do this.
![Page 7: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/7.jpg)
How many circles do you see?
ONE!
Each circle stands for one of something
![Page 8: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/8.jpg)
How many circles do you see now?
10How can we show the number ten without
drawing 10 circles?
A ten can be shown with a simple line.
![Page 9: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/9.jpg)
Here are 100
Circles. How can Idraw the number 100 without having to draw 100 of something?There are 10 groups of 10.
We can draw a box around the 100
circles.
![Page 10: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/10.jpg)
Let’s show the number 65…
![Page 11: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/11.jpg)
Let’s show the number 142…
100 + 40 + 2
![Page 12: How to represent numbers using “quick hundreds” “quick tens” and “quick ones” Unit 3 Math Expressions.](https://reader035.fdocuments.in/reader035/viewer/2022073120/56649cf45503460f949c199f/html5/thumbnails/12.jpg)
Your turn…
You will need to decide how to best say or draw the number that is shown…
? ? ?