Adding Integers

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Adding Integers

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Example 1 Writing Integer Addition Write the
addition modeled on each number line. A.
B.
1 0 1 2 3 4 5 6
The addition modeled is 5 (4) 1.
5 4 3 2 1 0 1 2 3 4
The addition modeled is 4 7 3.
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Example 1 Writing Integer Addition
Continued Write the addition modeled on each
number line. C.
4 3 2 1 0 1 2 3 4
The addition modeled is 3 (5) 2.
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Example 2 Write the addition modeled on each
number line. A. B.
1 0 1 2 3 4 5 6
The addition modeled is 6 (3) 3.
5 4 3 2 1 0 1 2 3 4
The addition modeled is 2 3 1.
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Example 2 Continued Write the addition modeled
on each number line. C.
4 3 2 1 0 1 2 3 4
The addition modeled is 4 (7) 3.
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Example 3 Find the sum. 3 (2)
6 5 4 3 2 1 0 1
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Example 4 Find the sum. 6 (8)
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Example 5 Find the sum. 2 (4)
6 5 4 3 2 1 0 1
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Example 6 Find the sum. 3 (6)
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Example 7 Evaluate y (2) for y 7.
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Example 8 Evaluate z (4) for z 2.
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Real-World Application 1 A sunken ship is 12 m
below the sea level. A search plane flies 35 m
above the sunken ship. How far above the sea is
the plane?
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Real-world Application 2 A sunken treasure chest
is 33 m below the sea level. A search plane flies
54 m above the sunken treasure chest. How far
above the sea is the plane?