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Standard Form and Properies

Mohammed copies this problem into his notebook
A. Use the associative and commutatitive properties to rearrange the factors.
B. Find the product. Write the product in standard form.
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1 Answer

(3.4)(3.8) = 12.92
(105)(10-9) = 10-4
So now you have 12.92 x 10-4
Move the decimal one to the left to get 1.292, but now you must change the -4 to a -3 because you already moved it one place to the left.
1.292 x 10-3   = .001292