(iii) 9000000+ 900 + 9 8. How many 6-digit numbers are there in all ? 9. How many 7-digit numbers are there in all ? 10. Arrange the following in descending order : (1) 5009, 87, 5010, 987, 5005 (ii) 10007, 9009, 10010, 9 Mathematics Part-6 2 Teacher's Signat​
