If 1050 – 74 is written as an integer in base 10 notation,what is_数学解答

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：365 ℃　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