If 1050 – 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
是10^50
人气：318 ℃ 时间：2020-03-25 07:13:38
解答
10^50 51位
－74 50位
后两位是26,前面48位是9
9*48+2+6＝440
C
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