4-1 A comparison is shown. The unknown digit in both numbers is the same digit.
Which makes the comparison always true?
A. The unknown digit is less than 3.
B. The unknown digit is less than 2.
C. The unknown digit is greater than 2.
D. The unknown digit is greater than 3.
4-2 A comparison is shown. The unknown digit in both numbers is the same digit.
Which makes the comparison always true?
A. The unknown digit is less than 8.
B. The unknown digit is less than 9.
C. The unknown digit is greater than 8.
D. The unknown digit is greater than 9.
4-3 A comparison is shown. The unknown digit in both numbers is the same digit.
Which makes the comparison always true?
A. The unknown digit is less than 5.
B. The unknown digit is less than 6.
C. The unknown digit is greater than 5.
D. The unknown digit is greater than 4.