Transcript Naming Decimals

Naming and Representing Decimals
NAMING DECIMALS
If you can read it you can WRITE IT!
1st name your whole numbers (if any)
 2nd read the decimal like you would a whole
number
 3rd find the place value of the last digit in the
decimal portion of the number. (last name)
**Remember the decimal point reads “and”**
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Example number one
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1.3
1st name the whole number
One
Next locate the place value of the last digit in the
decimal.
Tenths
Say the decimal like you would a whole number
and add the place value
3 tenths
Now add them all together including the decimal
point saying “and”
One and three tenths
Example 2
0.13
 There are no whole numbers in this
example so go to step two.
 The last digit in the decimal is 3 and it
is in the hundredths place.
 Since there is no whole numbers you
don’t read the decimal point. So just
read the decimal like a whole number
and add the place value
 Thirteen hundredths
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To write decimals in standard form
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This means to write the words as a number!
Find the decimal place value name in the words,
make you little marks to represent the place value.
Fill in the numbers to read the decimal correctly.
Write nine hundredths in standard
form.
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hundredths
tenths
Find the decimal place value name. In this example
it is hundredths. The hundredths place is two places
to the right of the decimal point. You don’t see the
word and in the question so there is no whole
numbers.
Make your marks to represent the place value like
so:
Then fill in your number to
0. 0 9
make the decimal read
correctly.
Write the decimal in standard form
1.
One and one hundred twenty-one thousandths
1. 0 2 1
Thousandths
Hundredths
tenths
With decimals make sure
the number ends with the
last place value and any
other places that do not
have a number in it put 0
for a place holder.
Use your boards to answer the following. Do not
doodle on your boards. Keep your answer covered
until it is time to hold your board up.
What is the word form of the
following?
0.2
1. Two tenths
2.
3.051
2. Three and fifty one
thousandth
3.
8.1
3. Eight and one tenth
1.
4.
5.
0.98
0.1257
4. Ninety eight hundredths
Read the number
5. One as
thousand two hundred
if it were a whole
fifty-seven ten thousandths
number
Write the following in standard form
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Fifty-one hundredths
0. 5 1
hundredths
tenths
Write the following in standard
form
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One and sixty-seven thousandths
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Eight and six hundred eleven ten-thousandths
7th period
Name the underlined Place value
1.
2.
3.
4.
5.
6.
7.
8.
2.35
123.4358
123,456
189,387
115.514
115.514
0.987543
0.987564
#17-23 Write the decimal in Word
Form
#42-44
17) 4.94
18)0.068
19) 0.387
20) 78.023
21) 20. 054
22) 0.0036
23) 9.0769
17) Four and ninety four
hundredths
18) Sixty-eight thousandths
19) Three hundred eighty-seven
thousandths
23)Seventy-eight
Nine and seven
20)
and twenty
three
thousandths
hundred
sixty-nine
ten-thousandths
21)
Twenty and fifty-four
thousandths
22) Thirty-six ten-thousandths
# 24-28
24) five tenths
25) eleven and three tenths
26) two and five hundredths
27) thirty-four and sixteen
hundredths
28) forty-one and sixty-two
ten-thousandths
#34
24) 0.5
25) 11.3
26) 2.05
27) 34.16
28) 41.0062
#34
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#34
Stern John-eight tenths
Carlos Ruiz-six hundred ninety-five thousandths
Taylor Twellman-sixty-five hundredths
Mamadou Diallo-six hundred thirty-five thousandths
Raul Diaz Arce-fifty-five hundredths
#42
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a.
b.
c.
d.
The world’s smallest vegetable is the snow pea. It
measures about 0.25 inch in diameter. Which
phrase correctly represents this value?
twenty-five hundreds
Twenty-five hundredths
Twenty-five tenths
Twenty-five thousandths
#43
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Write two hundred eighty-four and twelve
hundredths in standard form.
* Remember that hundredths is a two place decimal
284.12
#44
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Which of the following is another way to write the
diameter of the tire in inches?
30.61 in
f. (3 x 1) + ( 6 x 0.1) + (1 x 0.01)
g. ( 3 x 10) + (0 x 1) + (1 x 0.1) + (6 x 0.01)
h. Thirty and sixty-one tenths
j. Thirty and sixty-one thousandths