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数位   题数:29
Is the three-digit number n less than 550 ?(1) The product of the digits in n is 30. (2) The sum of the digits in n is 10.
If n is a three-digit positive integer, what is the sum of the digits of n ? (1) The hundreds digit of n is 3 times the units digit.(2) The hundreds digit of n is 3 more than the tens digit.
d = 0.43t7If t denotes the thousandths digit in the decimal representation of d above, what digit is t ?(1) If d were rounded to the nearest hundredth, the result would be 0.44.(2) If d were rounded to the nearest thousandth, the result would be 0.436.
【OG18-P287-403题】If n is a positive integer, what is the tens digit of n ?(1) The hundreds digit of 10n is 6.(2) The tens digit of n + 1 is 7.
【OG18-P287-403题】If n is a positive integer, what is the tens digit of n ?(1) The hundreds digit of 10n is 6.(2) The tens digit of n+1 is 7.
If N is a positive integer, is the units digit of N equal to zero? (1) 14 and 35 are factors of N. (2) N = (25 )(32 )(57 )(76 ​)
What is the tens digit of the positive integer r ? (1) The tens digit of r/10 is 3. (2) The hundreds digit of 10r is 6.
What is the hundredths digit of the decimal z ? (1) The tenths digit of 100z is 2. (2) The units digit of 1,000z is 2.
If n and s are each 2-digit positive integers, is n greater than s ?(1) The units digit of n is greater than the units digit of s.(2) The tens digit of n is greater than the tens digit of s.
Is the hundredths digit of the decimal d greater than 5 ?(1) The tenths digit of 10d is 7.(2) The thousandths digit of d10 ​ is 7.
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