Lesson 3.1 Decimals And Place Value Worksheet
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Decimals and Place Value
Now
B E F O R E
W H Y ?
You learned how to read and
You’ll read and write decimals.
So you can read decimals, such as
write whole numbers.
the race times in Example 3.
You can use base-ten pieces to model numbers.
Word Watch
The diagram below shows the values of the base-ten pieces.
decimal, p. 108
1 one (1 whole)
1 tenth
1 hundredth
Use base-ten pieces to complete the statement.
1. 1 one
_ ? _ tenths
2. 1 one
_ ? _ hundredths
3. 1 tenth
_ ? _ hundredths
4. 30 tenths
_ ? _ ones
5. 40 hundredths
_ ? _ tenths
6. 2 ones and 5 tenths
_ ? _ tenths
1
Expressing a Number in Different Ways
E X A M P L E
a. Write 20 hundredths using only tenths.
Notetaking
with
20 hundredths
You might want to record
Think of
10 hundredths
as
1 tenth.
relationships between
2
10 hundredths
base-ten pieces in your
2
1 tenth
notebook, such as
1 one
10 tenths.
2 tenths
b. Write 1 one and 4 tenths using only tenths.
1 one
and 4 tenths
Use the fact that
1 one
10 tenths
and 4 tenths
equals
10 tenths.
14 tenths
Y
Copy and complete the statement.
our turn now
1. 500 hundredths
_? _ tenths
2. 4 ones and 9 tenths
_ ? _ tenths
107
Lesson 3.1
Decimals and Place Value
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