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SAT Math Practice Exam

Category - Mathematics - Hard

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(1/3)2-(1/3)(1/2)=

-1/6
-1/18
1/18
1/6
1/3

Explanation

Answer B- Take common factor 1/3 out
1/3 ( 1/3 - ½) = 1/3 X (-1/6) = -1/18

Key takeaway: To simplify an expression, look for hidden multiples, factors and search possibility of taking out.

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