Transcript Lesson 3.3 Ordering Decimals

Lesson 3.3
Ordering Decimals
Comparing Metric Lengths
Look at your ruler to see if
10.6 < 11 or 11>10.6
Ordering Numbers on a Number Line
Order the numbers x, y, and z from greatest to least.
3.6
3
X
4.5
4
Y
5.2 > 4.5 > 3.6
5.2
5
Z
Ordering Numbers on a Number Line
Order the numbers x, y, and z from greatest to least.
3.06
3.0
X
3.15
3.1
Y
3.22 > 3.15 > 3.06
3.22
3.2
Z
Lesson 3.3
Ordering Decimals
Comparing Decimals
3.06
3.0
X
3.15
3.1
Y
3.22
3.2
Z
3.22 > 3.15 > 3.06
When you graph decimals on a number line to compare them, the
greater number is farther to the right. You can also compare decimals
by looking at their place values. How?
Copy in your
notebook
Ordering Decimals
3 STEPS FOR COMPARING & ORDERING DECIMALS
5.796 and 5.85
1. Write the decimals in a column, lining up the
decimal points.
5 .
5 .
7 9 6
8 5 0
2. If necessary, write zeros to the right of the decimals
so that all decimals have the same number of decimal
places.
3. Compare place values from left to right.
Since 8 > 7, 5.850 > 5.796
Lesson 3.3 Ordering Decimals
YOUR TURN
Try in your notebook
Order the numbers from greatest to least.
9.5, 9.35, 9.65
1.01, 0.00, 1.00, 0.11, 1.10, 0.10, 1.11
Use <, =, or > to complete each
Do in your notebook
0.01
0.15 statement.
0.207
2.36
0.27
2.036
0.990
0.05
34.4
0.99
0.15
34.40
Use place value to order the decimals
from least to greatest.
3.46, 3.64, 3.59
1.09, 1.9, 1.1
10.02, 10.2, 1.02
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Order each set of numbers on a number
line
0.67, 0.7, 0.6
8.26, 8.01, 8.1