Simplifying Expressions

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Presentation transcript:

Simplifying Expressions Mrs. Spanier 8th grade math

Solve one. Show your work! Use the number 3 four times with any operations to equal 36. …or to equal 7.

If the absolute value of 4 is 4 and the absolute value of -3 is 3, create a definition for absolute value with a partner.

Write an example of a number that is a: Real number Whole Number Integer Natural Number Rational Number Irrational Number

Distributive Property http://teachertube.com/viewVideo.php?video_id=40597&title=Introduction_to_the_Distributive_Property

Distribute and Simplify Expressions http://www.teachertube.com/viewVideo.php?video_id=27171&title=Day_138_Distributive_Property_and_Simplifying_Expressions

Write an expression for each: Four less than the sum of a number t and -6. Nine more than the quotient of 2 and a number r. Five times the difference of 8 and a number p.

Solve. Show your work! 6 + 7 • 2 – 5 8 + 27 ÷ 3 6 • 6 – 5 • 4 9 ÷ 3 + (8 – 2 • 3 ) (5 + 4 • 4) ÷ 7 = 15 = 17 = 16 = 5 = 3

Rewrite #1 so the answer is 21. Solve. Show your work! Rewrite #1 so the answer is 21. (6 + 7) • 2 - 5

Simplify. Show your work! (4² - 3²)( ) ÷ (25 – 4) (42 + 18 – 54)( /1) = (7)(18)÷(21) = 6 = (60 – 54)(10) = 60