SAT Math Multiple Choice Practice Question 65: Answer and Explanation

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Question: 65

21. What is the result when -8 is subtracted from 10?

A. 18
B. 2
C. -2
D. -18
E. -80

Correct Answer: A

Explanation:

A. The tricky part here is the phrase "subtracted from." "Two subtracted from five," for example, means 5 - 2, not 2 - 5. Take care not to write (-8) - 10 for this problem. Instead, do 10 - (-8) = 10 + 8 = 18.

A bunch of phrases signal subtraction — "subtracted from," "less than," and "fewer than" are the most common — and they all require you to switch the order of the quantities being subtracted.

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