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Decimals PowerPoint PPT Presentation


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Decimals. 10ths and 100ths. 10ths and 100ths. Look at my square. It is divided into 10 rows. Dividing my square into 10 rows makes tenths. How many tenths are highlighted?. 10ths and 100ths. My square is also divided into 100 parts. These are hundredths. How many hundredths make 1 tenth?.

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Decimals

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Decimals

10ths and 100ths


10ths and 100ths

Look at my square. It is divided into 10 rows.

Dividing my square into 10 rows makes tenths.

How many tenths are highlighted?


10ths and 100ths

My square is also divided into 100 parts. These are hundredths.

How many hundredths make 1 tenth?

10 hundredths = 1 tenth


10ths and 100ths

What decimal fraction is the highlighted area? (Use number fans to show answer)

U . 10ths 100ths

0 . 5 7

How many hundredths is this decimal?

5 7


10ths and 100ths

What decimal fraction is the highlighted area? (Use number fans to show answer)

U . 10ths 100ths

0 . 6 4

How many hundredths is this decimal?

6 4


10ths and 100ths

What decimal fraction is the highlighted area? (Use number fans to show answer)

U . 10ths 100ths

0 . 0 9

How many hundredths is this decimal?

9


10ths and 100ths

What decimal fraction is the highlighted area? (Use number fans to show answer)

U . 10ths 100ths

0 . 1 2

How many hundredths is this decimal?

1 2


10ths and 100ths

What decimal fraction is the highlighted area? (Use number fans to show answer)

U . 10ths 100ths

1 . 3 7


10ths and 100ths

What decimal fraction is the highlighted area? (Use number fans to show answer)

U . 10ths 100ths

5 . 8 9


10ths and 100ths

What decimal fraction is the highlighted area? (Use number fans to show answer)

U . 10ths 100ths

3 . 0 7


10ths and 100ths

What decimal fraction is the highlighted area? (Use number fans to show answer)

U . 10ths 100ths

4 . 1 1


10ths and 100ths

What decimal fraction is the highlighted area? (Use number fans to show answer)

U . 10ths 100ths

9 . 8 1


0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.1

10ths and 100ths

Decimal fractions can also be illustrated using number lines.

Count the division between numbers.

10 divisions

What value is each division?

1 hundredth


5

5.1

5.2

5.3

5.4

5.5

5.6

5.7

5.8

5.9

6

6.1

10ths and 100ths

Use your number fans to show the value of each arrow.


2

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3

3.1

10ths and 100ths

Use your numbers fans show the difference between the two numbers


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