math
posted by Elizabeth .
Shopping: Tax
Situation: You are purchasing four items and want to calculate the tax. The items
cost $2.50, $8.75, $3.00, and $10.25. The tax rate is 6%. How much is the tax?
Calculation With Distribution
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Calculation Without Distribution
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I think is easier: to distribute. to not distribute.
Why I Think it is Easier
© 2015 Connections Education LLC. All rights reserved. 4
Mental Math
Situation: You exercised 24 hours each month for a year. How many hours did you
exercise by the end of the year? You may be able to do the math mentally thanks
to expanded notation and the Distributive Property.
Calculation With Distribution
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Calculation Without Distribution
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I think is easier: to distribute. to not distribute.
Why I Think it is Easier
© 2015 Connections Education LLC. All rights reserved. 5
Multiplying by a Negative Number
Situation: Find the value of this integer expression: 2( 3 4 8 7) −+ − − + +++ .
Calculation With Distribution
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Calculation Without Distribution
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I think is easier: to distribute. to not distribute.
Why I Think it is Easier
© 2015 Connections Education LLC. All rights reserved. 6
Multiplying and Adding Fractions
Situation: Find the value of this fraction computation:
123 6
234
+ +
.
Calculation With Distribution
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Calculation Without Distribution
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I think is easier: to distribute. to not distribute.
Why I Think it is Easier
© 2015 Connections Education LLC. All rights reserved. 7
Geometry formulas
Situation: Find the perimeter of a rectangular area with a length of 13 inches and
a width of 7 inches.
Calculation With Distribution
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Calculation Without Distribution
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I think is easier: to distribute. to not distribute.
Why I Think it is Easier
© 2015 Connections Education LLC. All rights reserved. 8
Original Example
Give an original example of a situation in which the Distributive Property could be
used.
Situation
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Calculation Without Distribution
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9
I think is easier: to distribute. to not distribute.
Why I Think it is Easier

try just posting a problem without copying all the surrounding text, eh?
Don't make us figure out the question as well as the answer. Clean it up and post it again. Maybe just one question. Learn from its solution and try more on your own.
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You are purchasing four items and want to calculate the tax. The items cost $2.50, $8.75, $3.00, and $10.25. The tax rate is 6%. How much is the tax?