february 25, 2015
TRANSCRIPT
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Today: Khan Academy Practice Problems
Multiplying Monomials : More Complex Problems Scientific Notation Review
Multiplying & Dividing w/Scientific Notation Class Work 3.6
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Khan Academy: Simplifying Expressions with ExponentsIn other words, all answers
are in integer, not ratio form.
z9 t12
In Khan Academy, type z9
like this : z^9shift 6
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Common Errors with Exponents
But remember, in the case of:
5x3 • 6x2,
the ‘x’ is the base. What is our answer here?
30x5
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Common Errors with Exponents
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Multiplying Monomials: Level II1. (-2r3s7t4 )2 (-6r2t 6)
Raise the 1st monomial to the 2nd power.(4r6s14t8) (-6r2t 6):
= -24r 8 s14 t14
Multiply the coefficients and add the variables with like bases
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Step 1:
Multiplying Monomials: Level II
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Step 2:
Step 3:
Step 4:
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Step 5:
Step 6-7:
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Multiplying Monomials: Level II
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Change to a division problem & solve:
Monomials: New Problem Type
2x2y1
3x-3y-2 =
Change to a division problem & solve:6r3s2
- 1
2r-2s-7
=
Change to a multiplication problem & solve:
(4x3y2z-2) (18
x-2z-4) =
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Scientific Notation
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Scientific Notation ReviewWrite in Scientific Notation:1. 32,5002. 902,050,0003. .0005002
Write in Standard Notation:1. 57 x 10-4
2. 9.087 x 105
3. 20.9 106
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Scientific Notation: New Problem TypesMultiply Monomials Written in Scientific Notation
A. (3.2 x 103) (7.4 x 102) 1. Use the commutative Property of multiplication to rewrite
problem with the constants together and the exponents together.(3.2 x 7.4) (103 x 102) = 23.68 x 105 =
2. Rewrite in correct scientific notation form.23.68 x 105 = 2.368 x 10?6
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Scientific Notation: New Problem TypesDivide Monomials Written in Scientific Notation
= 4.5 x 106
= .75 x 10-7 = = 7.5 x 10?-8
1. Divide the coefficients and subtract the exponents. 2. Rewrite in correct scientific notation form.
Always use the decimal form of the number
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Class Work 3.7 You must show all steps required to
solve the problem
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