Lesson Number Systems
Presentation
•
Mathematics
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7th Grade
•
Hard
Joseph Anderson
FREE Resource
6 Slides • 9 Questions
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Number Systems: Operations with Rational Numbers (1)
MGSE7.NS.1a Show that a number and its opposite have a sum of 0 (are additive inverses). Describe situations in which opposite quantities combine to make 0. For example, your bank account balance is -$25.00. You deposit $25.00 into your account. The net balance is $0.00.
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COPY THE NOTES IN YOUR NOTEBOOK!!!
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Types of Numbers
Natural Numbers ( 1, 2, 3, 4, 5...)
Whole Numbers ( 0,1,2,3,4,5...) Includes 0 and all natural numbers
Integers (..., -3, -2, -1, 0, 1, 2, 3...)
Rational Numbers ( All Natural, Whole, Integers, fractions, and decimal numbers) can be written as a ratio
Irrational Numbers- Can not be written as a ratio. Ex. Pi
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Absolute Value
distance a number is from zero along a number line
Simply put, is just asking you how far away -4 is from zero.
Since distance is always a positive number (you can't travel "negative" steps, just steps in a different direction), the result of absolute value is always positive.
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Additive Inverse
Another name for Additive Inverse is "Opposite"
Example 4 and -4
Opposites are an equal distance from zero.
Their sums are zero
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Open Ended
Choose one word from the image that describes a negative number.
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Open Ended
Choose one word from the image that describes a positive number.
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Fill in the Blanks
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Fill in the Blanks
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Fill in the Blanks
Number Systems: Operations with Rational Numbers (1)
MGSE7.NS.1a Show that a number and its opposite have a sum of 0 (are additive inverses). Describe situations in which opposite quantities combine to make 0. For example, your bank account balance is -$25.00. You deposit $25.00 into your account. The net balance is $0.00.
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