AMC8 2014

AMC8 2014 · Q1

AMC8 2014 · Q1. It mainly tests Arithmetic misc.

Harry and Terry are each told to calculate $8-(2+5)$. Harry gets the correct answer. Terry ignores the parentheses and calculates $8-2+5$. If Harry's answer is $H$ and Terry's answer is $T$, what is $H-T$?

哈利和特里分别被要求计算 $8-(2+5)$。哈利得到了正确的答案。特里忽略了括号，计算了 $8-2+5$。如果哈利的答案是 $H$，特里的答案是 $T$，那么 $H-T$ 是多少？

(A) -10 -10

(B) -6 -6

(D) 6 6

(E) 10 10

Answer

Correct choice: (A)

正确答案：（A）

Solution

We have $H=8-7=1$ and $T=8-2+5=11$. Clearly $1-11=-10$, so our answer is $\boxed{\textbf{(A)}-10}$.

我们有 $H=8-7=1$，$T=8-2+5=11$。显然 $1-11=-10$，所以答案是 $\boxed{\textbf{(A)}-10}$。

Topics

AR.015 Arithmetic misc