Decimals

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Decimals

• Place value,
• Comparing Ordering

2
Place Value Chart
3
DECIMAL PLACE VALUE

• Decimals show part of a whole.
• The decimal point separates the ones place and
  the tenths place.
• The decimal says the word and.

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Decimal Models
One Whole
5
Decimal Models
Tenths
6
Decimal Models
0.1
Tenths
7
Decimal Models
Hundredths
8
Decimal Models
.01
Hundredths
9
Decimal Models
.42 forty two hundredths
10
Decimal Models
3
3.7
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Comparing Decimals Number line
lt
5.1 5.8
5.1
5.8
5.5
5.0
6.0
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Comparing Decimals Place Value
2.033
2.037
2.037 2.033
Line up decimal points Start at left, compare
each place value
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Comparing Decimals Place Value
2.033
2.037
2.037 2.033
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Comparing Decimals Place Value
gt
2.033
2.037
2.037 2.033
7 and 3 are not equal 7 thousandths gt 3
thousandths
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Ordering Decimals Place Value
19.48, 19.481, 19.4
Line up the decimal points
19.48 19.481 19.4
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Ordering Decimals Place Value
19.48, 19.481, 19.4
Annex a zero so that each has the same number of
decimal places.
19.48 19.481 19.4
0
0
0
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Ordering Decimals Place Value
19.48, 19.481, 19.4
Compare place to place, putting the numbers in
order from least to greatest.
19.48 19.481 19.4
0
19.48
19.481
19.4
0
0
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Ordering Decimals Place Value
19.48, 19.481, 19.4
19.4 19.48 19.481
19.48 19.481 19.4
0
0
0