2. 外语
  3. On the number line, 2.3 is halfway between which of the following numbers?______m2

On the number line, 2.3 is halfway between which of the following numbers?______m2

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问题 On the number line, 2.3 is halfway between which of the following numbers?______m2
选项 A、-2.3 and 2.3
B、-1.6 and 6.2
C、-0.3 and 4.3
D、0.24 and 6.84
E、0.5 and 3
答案B
解析 The correct answer is B. In order to solve this problem, find the distance between the first number in the answer and 2.3, and see if that matches the distance between 2.3 and the second number. The only pair for which this is true is -1.6 and 6.2; the distance between -1.6 and 2.3 is 3.9, and the distance between 2.3 and 6.2 is 3.9.
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