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Juan walked 3 more miles than Rebecca. Rebecca walked 4 times as far as William. William walked 2 miles. Which of the following
Juan walked 3 more miles than Rebecca. Rebecca walked 4 times as far as William. William walked 2 miles. Which of the following
admin
2011-03-08
113
问题
Juan walked 3 more miles than Rebecca. Rebecca walked 4 times as far as William. William walked 2 miles. Which of the following mathematical expressions is equivalent to the number of miles Juan walked?
______3×4×2
______(2+4)×3
______4(2)+3
______4+3+2
选项
答案
To solve this problem, start with William and work backward. William walked 2 miles, and Rebecca walked 4 times as far as William. Therefore, Rebecca walked 4(2) miles. Juan walked 3 more miles than Rebecca, so Juan walked [4(2)+3] miles.
解析
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