我先翻譯一下題目:
Subtract -6 from the difference between the smallest and the greatest 2-digit prime numbers, what is the result?
把兩位數之中最大和最小的質數的差減以 -6,結果是多少?
The greatest 2-digit prime number is 97.
兩位數之中最大的質數是 97。
The smallest 2-digit prime number is 11.
兩位數之中最小的質數是 11。
The difference between the smallest and the greatest 2-digit prime numbers is
97 - 11 = 86.
兩位數之中最大和最小的質數的差是 97 - 11 = 86。
The result of the subtraction is
86 - (-6) = 86 + 6 = 92
圖片參考:
https://s.yimg.com/rk/HA00430218/o/545489186.jpg
2015-08-02 17:09:01 補充:
不用客氣~
似乎是題目出錯。
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