AMC10 2010 B
AMC10 2010 B · Q1
AMC10 2010 B · Q1. It mainly tests Linear equations.
What is $100(100-3)-(100\cdot 100-3)$?
计算 $100(100-3)-(100\cdot 100-3)$ 的值？
(A)
-20,000
-20,000
(B)
-10,000
-10,000
(C)
-297
-297
(D)
-6
-6
(E)
0
0
Answer
Correct choice: (C)
正确答案：（C）
Solution
Answer (C): Simplifying gives
$100(100-3)-(100\cdot 100-3)=100\cdot 100-100\cdot 3-100\cdot 100+3$
$=-300+3$
$=-297.$
答案（C）：化简得
$100(100-3)-(100\cdot 100-3)=100\cdot 100-100\cdot 3-100\cdot 100+3$
$=-300+3$
$=-297.$
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