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 答案c 题目不太懂特来请教 谢谢
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就是1050 – 74 用十进制表达,问各个位的数字之和
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