Write 506 in expanded from

Write the successor of 999.

Compare the given numbers?
9395_____9347

Write the predecessor of 900.

Find the missing number.
1005,_____,1007.

Compare the given number:-
7894_____7896

All numbers from 1,2,3,4.............. are called ___________numbers.

Write the greatest 4 digit number using the digits 3,9,4,6

Numbers from 100,101,102........999 are called __________digit numbers.

Using the digits 6,3,4,2 write the smallest four digit number :-