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2 August, 22:22

A hiker is climbing down a valley. He stops for a water break 4 times. Between each break, he descends 15 meters. How many meters did he descend? Ju Chan answered the question by writing the following: 4 (-15) meters = - 60 meters. Which word in the problem indicates that a negative number should be used?

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  1. 3 August, 00:30
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    I think Ju Chan means minus 15 each time so it’s just 15 times four which equals 60 meters
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