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SAT Math Practice Exam

Category - Mathematics - Hard

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2/1000 + 3/1000 + 4/100000 =

0.234
0.2304
0.0234
0.02304

Explanation

Answer: D - First convert each fraction into decimal number and then use the rules of addition of decimal numbers.
2/1000 = 0.002 3/10000 = 0.0003 4/100000 = 0.00004

0.00200
0.00030
0.00004
______
0.00234
Key takeaway: Before adding, you must line up evenly decimal points by putting zeros to the right of the ones that need them.

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