Information about Dizzying Decimals

Published on September 19, 2007

Author: ejboggs

Source: slideshare.net

What is a decimal?

A decimal is a fractional number and is indicated by digits after a period which is called a decimal point.

Place Values of Decimals Decimal numbers, such as O.6495, have four digits after the decimal point. Each digit is a different place value.

Okay … The first digit after the decimal point is called the tenths place value. There are six tenths in the number O.6495. The second digit tells you how many hundredths there are in the number. The number O.6495 has four hundredths. The third digit is the thousandths place. The fourth digit is the ten thousandths place which is five. Therefore, there are six tenths, four hundredths, nine thousandths, and five ten thousandths in the number 0.6495.

The first digit after the decimal point is called the tenths place value. There are six tenths in the number O.6495.

The second digit tells you how many hundredths there are in the number. The number O.6495 has four hundredths.

The third digit is the thousandths place.

The fourth digit is the ten thousandths place which is five.

Therefore, there are six tenths, four hundredths, nine thousandths, and five ten thousandths in the number 0.6495.

Tenths Tenths have one digit after the decimal point The decimal 0.8 is pronounced "eight tenths" or "zero point eight" It is equal to the fraction 8/10.

Tenths have one digit after the decimal point

The decimal 0.8 is pronounced "eight tenths" or "zero point eight"

It is equal to the fraction 8/10.

Hundredths Hundredths have two digits after the decimal point. The decimal 0.36 is pronounced "thirty-six hundredths" or "zero point thirty-six" . It is equal to the fraction 36/100.

Hundredths have two digits after the decimal point.

The decimal 0.36 is pronounced "thirty-six hundredths" or "zero point thirty-six" .

It is equal to the fraction 36/100.

Thousandths Thousandths follow a similar pattern. They have three digits after the decimal point. The decimal 0.749 is pronounced "seven hundred forty-nine thousandths" or "zero point seven four nine" .

Thousandths follow a similar pattern.

They have three digits after the decimal point.

The decimal 0.749 is pronounced "seven hundred forty-nine thousandths" or "zero point seven four nine" .

Ten-Thousandths Ten thousandths have four digits after the decimal point .

Ten thousandths have four digits after the decimal point .

Zeros in the Decimal There may be zeros after the decimal point. The decimal 0.064 is pronounced "sixty-four thousandths" or "zero point zero six four" .

There may be zeros after the decimal point.

The decimal 0.064 is pronounced "sixty-four thousandths" or "zero point zero six four" .

So we’ve looked at: .0025 Twenty-five ten- thousandths Standard Form Word Form

.0025

Twenty-five ten- thousandths

Standard Form

Word Form

What all will we do with decimals?

LOTS!! Read Write Compare Order Round Add Subtract Multiply Divide Word Problems Change into fractions Change into percents Use with money problems.

Read

Write

Compare

Order

Round

Add

Subtract

Multiply

Divide

Word Problems

Change into fractions

Change into percents

Use with money problems.

WOO HOO!! Let’s get started!!

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