标题:
GWD 1-14
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作者:
胡子长了
时间:
2010-6-3 16:20
标题:
GWD 1-14
Q14:
If 10^50 – 74 is written as an integer in base 10 notation, what is the sum of the digits in that integer?
A.424
B.433
C.440
D.449
E.467
Answer:
作者:
ookko
时间:
2010-6-3 16:21
答案C?
作者:
myice
时间:
2010-6-3 16:22
回复
2#
ookko
是的,麻烦解释解释呗,呵呵
作者:
Lolita
时间:
2010-6-3 17:32
(50-2)*9+2+6=440
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