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Decimals. Let’s Get To The Point!. Decimals. Decimals are based on a whole being split into ten equal parts one or more times. Decimals are numbers that are expressed using a decimal point. The U.S. monetary system is based on the decimal system. . Wait a second….

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Decimals

Decimals

Let’s Get To The Point!


Decimals1
Decimals

  • Decimals are based on a whole being split into ten equal parts one or more times.

  • Decimals are numbers that are expressed using a decimal point.

  • The U.S. monetary system is based on the decimal system.


Wait a second
Wait a second…

  • The U.S. monetary system is based on the decimal system.

  • That means…

    If I know money,

    I already know decimals!



How much does a soda cost1
How much does a soda cost?

  • 5 Dimes

  • 50 Pennies

  • 50 Cents

  • $.50 (Hey, that’s a decimal!)



What does fifty cent look like1
What does Fifty-Cent look like?

Not Quite…

Wrong guy and wrong thing to define.

I want to know what $.50 looks like.


What does 50 look like
What does $.50 look like?

50 Pennies, .50, 50/100

5 Dimes, .5, 5/10,


What does 47 look like
What does $.47 look like?

47 Pennies, .47, 47/100

Oops…Not quite 5 dimes


What does 82 look like
What does $.82 look like?

82 Pennies, .82, 82/100

A little more than 8 dimes


Learning place values
Learning Place Values

  • We can extend the whole number place value chart to include decimal values.

  • The decimal point is read as and.

  • The place right after the decimal point is in the tenths spot, then hundredths, then thousands…


98 7654
98.7654

9 is in the tens place

8 is in the


98 76541
98.7654

9 is in the tens place

8 is in the ones place

Decimal

7 is in the


98 76542
98.7654

9 is in the tens place

8 is in the ones place

Decimal

7 is in the tenths place

6 is in the


98 76543
98.7654

9 is in the tens place

8 is in the ones place

Decimal

7 is in the tenths place

6 is in the hundredths place

5 is in the


98 76544
98.7654

9 is in the tens place

8 is in the ones place

Decimal

7 is in the tenths place

6 is in the hundredths place

5 is in the thousandths place

4 is in the


98 76545
98.7654

9 is in the tens place

8 is in the ones place

Decimal

7 is in the tenths place

6 is in the hundredths place

5 is in the thousandths place

4 is in the ten-thousands place




How would i say 67 342
How would I say 67.34?

Sixty-seven AND


How would i say 67 343
How would I say 67.34?

Sixty-seven AND thirty-four


How would i say 67 344
How would I say 67.34?

Sixty-seven AND thirty-four hundredths



How would i say 213 9721
How would I say 213.972?

Two hundred thirteen


How would i say 213 9722
How would I say 213.972?

Two hundred thirteen AND


How would i say 213 9723
How would I say 213.972?

Two hundred thirteen AND nine hundred seventy-two


How would i say 213 9724
How would I say 213.972?

Two hundred thirteen AND nine hundred seventy-two thousandths




How would i say 98 76542
How would I say 98.7654?

Ninety Eight AND


How would i say 98 76543
How would I say 98.7654?

Ninety Eight AND seven thousand six hundred fifty-four


How would i say 98 76544
How would I say 98.7654?

Ninety Eight AND seven thousand six hundred fifty-four ten-thousandths


What have i learned today
What have I learned today?

  • What is a decimal?

  • Decimal Place Values

  • Read Decimals




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