Algebra: Using Integers

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Algebra Using Integers

• Integers - any number from the set
• ,-4,-3,-2,-1,0,1,2,3,4,

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When Am I Ever Going To Use This?
You can use integers to keep score in sports.
You can use integers to keep track of
Temperature Change.
You use integers to measure sea level.
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When Am I Ever Going To Use This?
You can use integers to keep track of the Stock
Market.
You can use integers to record Weight Gain or
Loss.
You can use integers to record money withdrawals
or deposits to your banking accounts.
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One of the main reasons you need To learn
integers is to
PASS
Algebra next year in high school!!!!
And GRADUATE from high school.
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Review Vocabulary
The answer to an add problem is the
Sum
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Review Vocabulary
The answer to a subtract problem is the
Difference
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Review Vocabulary
The answer to a multiplying problem is the
Product
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Review Vocabulary
The answer to a divide problem is the
Quotient
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• Integers greater than 0 are positive integers.

Integers less than 0 are negative integers.
Negative not MINUS

• Zero is neither positive or negative.

Positive integers are usually written without
the sign, so 5 and 5 are the Same.
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-5
0
5
On the number linethe numbers have a greater
value as you go to the right.
- 1 is the largest negative integer.
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All Positive numbers are larger than Any negative
number.
The additive inverse of 7 is 7.
The additive inverse of 9 is 9.
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Integers
After the 1990 census, Texas gained 3 seats in
the United States House of Representatives.
Michigan lost 2 seats. You can use the integers
3 and -2 to describe these situations,
respectively.
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Opposites
Two numbers are opposites of one another if they
are represented by points that are the same
distance from 0, but on opposite sides of 0.
All opposites add to zero.
-3 3 0 (21) (-21) 0
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Absolute Value
The Absolute Value is helpful when adding
integers. The Absolute Value of an integer is its
distance from 0 on a number line. The Absolute
Value of -4 4
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Ordering Integer Problems
lt
1. - 1 10
gt
2. -3 - 4
lt
3. 0 8
gt
4. -4 0
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• Put in order from least to
• greatest.
• 4, -3, 0, -8

-8, -3, 0, 4
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Integers
Put in order from greatest to least. -3, 0, 5,
-25, 36, -1, 7
36, 7, 5, 0, -1, -3, -25
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The End