# SAT Math Multiple Choice Practice Question 158: Answer and Explanation

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**Question: 158**

**4.** If j is positive and k is negative, which of the following is the greatest?

A. j + k

B. j - k

C. jk

D. k - j

E. k ÷ j

**Correct Answer:** B

**Explanation:**

B. Choices (C), (D), and (E) would be negative. (A) might be negative, if k is something like -10 and j is, for example, 4. But (B) must be positive because subtracting k, a negative number, is the same as adding a positive number. Bingo: (B) is your winner.