Post on 19-Jan-2018
description
transcript
Decimals Mini-
Lesson: Tenths and Hundredth
s
Today, the fractions we will be looking at are called decimal fractions.
Decimal Fractions have denominators that are multiples of 10.
These are decimal fractions:
We are also going to learn how to read and
recognize decimal numbers to the
hundredths.
Writing decimals is a different way of
writing fractions.
Just like fractions, decimals also
represent a part that is less than a
whole.
When writing decimal numbers, you need to place numbers to the
right of a decimal point.
.56
When writing decimal numbers, you need to place numbers to the
right of a decimal point.
0.10
.56
When writing decimal numbers, you need to place numbers to the
right of a decimal point.
.7
0.10
.56
When writing decimal numbers, you need to place numbers to the
right of a decimal point.
23.21
.7
0.10
.56
When writing decimal numbers, you need to place numbers to the
right of a decimal point.
0.08
23.21
.7
0.10
.56
When writing decimal numbers, you need to place numbers to the
right of a decimal point.
0.08
23.213.04
.7
0.10
.56
123.56Hundreds
Tens
Ones
Tenths
Hundredths
This is a place value chart that represents the decimal places: tenths
and hundredths.
and
123.56Hundreds
Tens
Ones
Tenths
Hundredths
This underlined number is in the tenths place and represents 5 tenths.
and
5 tenths is the same as:
0.5
123.56Hundreds
Tens
Ones
Tenths
Hundredths
This underlined number is in the hundredths place and represents 6 hundredths.
and
6 hundredths is the same as:
0.06
Let’s Practice!
Which of the following is equal to ?
.05 .5or
Which of the following is equal to ?
.05 .5or
Which of the following is equal to ?
.1 .01or
Which of the following is equal to ?
.1 .01or
Which of the following is equal to ?
.09 .9or
Which of the following is equal to ?
.09 .9or
Which of the following is equal to ?
6.4 .64or
Which of the following is equal to ?
6.4 .64or
How do you say the following decimal?
0.2
How do you say the following decimal?
0.2Two Tenths
How do you say the following decimal?
0.7
How do you say the following decimal?
0.7Seven Tenths
How do you say the following decimal?
0.08
How do you say the following decimal?
0.08Eight Hundredths
How do you say the following decimal?
0.75
How do you say the following decimal?
0.75Seventy-Five Hundredths
Let’s look at decimal
equivalents
0.4 is equivalent to 0.40
=
0.9 is equivalent to 0.90
=
0.1 is equivalent to 0.10
=
0.3 is equivalent to 0.30
=
Let’s compare decimal models
Which decimal model equals more?
Which decimal model equals more?
0.8 is greater than 0.40
>
Which decimal model equals more?
Which decimal model equals more?
0.6 is less than 0.70
<
Which decimal model equals more?
Which decimal model equals more?
0.40 is less than 0.8
<
Which decimal model equals more?
Which decimal model equals more?
0.50 is greater than 0.3
>
Let’s say the decimal name of
each of the following models.
0.8
0.54
0.2
0.37
0.7
0.91