Q. 3. Make the greatest and the smallest 4-digit numbers using any four different digits with conditions as given. (Note, the number cannot begin with the digit 0. Why?)
(b) Digit 4 is always at tens place Greatest
Smallest
(c) Digit 9 is always at hundreds place Greatest
Smallest
(d) Digit 1 is always at thousands place Greatest
Smallest
(b) Digit 4 is always at tens place
Greatest - 9847
Smallest - 1042
(c) Digit 9 is always at hundreds place
Greatest - 8976
Smallest - 1902
(d) Digit 1 is always at thousands place
Greatest- 1987
Smallest - 1023