1. Writing Decimals ­ Rounding Decimals
November 30, 2015
9
Warm Up
How
do we
read
and
write
decim
als?
11-30-15
Day 56
Write the following fractions in word form..
1.
2.
3.
4.
ls
ima
Dec
Definition of Decimal:
A fraction whose denominator is 10 or a power of 10. (10, 100, 1000,
10000...)
1
2
1
=
=
25
Write the number in word form.
Reading and Writing Decimals
lion
ths
usa
mil
d-t
ho
and
ous
-th
hun
ths
ten
s
dth
usa
nd
tho
dre
hun
ths
ten
s
one
s
ten
dre
ds
hun
dre
ths
nd
ths
a) 2.03
two and three hundredths
1. Writing Decimals ­ Rounding Decimals
Write the number in word form.
b) 7.000586
seven and five hundred eighty-six
millionths
Write the number in word form.
November 30, 2015
Write the number in word form.
c) 0.345678
three hundred forty-five thousand
six hundred seventy-eight millionths
Write the number in standard form.
a) twelve and four hundred fifteen thousandths
d) 32.25874
thirty-two and twenty-five thousand
eight hundred seventy-four hundredthousandths
12.415
b) three hundred twenty-nine thousand
four hundred fifty-eight millionths
c) one and seventy thousand twenty-one
hundred-thousandths
1What is the standard form of one and three hundred twenty‐five thousandths? 0.329458
1.70021
2What is the standard form of forty‐six thousand nine hundred‐thousandths? 1. Writing Decimals ­ Rounding Decimals
3What is the standard form of five hundred November 30, 2015
4Which of the following is the word form of 1.02564
twenty‐six ten‐thousandths?
A
one and two thousand five hundred sixty‐four ten‐thousandths
B
one and two thousand five hundred sixty‐four hundred‐millionths
C
one and two thousand five hundred sixty‐four hundred‐thousandths
D
one and two thousand five hundred sixty‐four hundred E
Answer not given
5Which of the following is the word form of 0.046895
A
forty‐six thousand eight hundred ninety‐five hundred‐thousandths
B forty‐six thousand eight hundred ninety‐five millionths
C
forty‐six thousand eight hundred ninety‐five
D
forty‐six thousand eight hundred ninety‐five thousandths
E
Answer not given
Please open to Decimal Packet page 6!
1. Writing Decimals ­ Rounding Decimals
November 30, 2015