Use the appropriate symbol '>' or '<' between the two numbers.
1001_____1010
1001<1010
Thousand and hundred place is common but tens place is 1 in 1010 and 0 in 1001.
Hence,1001<1010.
Insert appropriate symbol (<,> or = ) between the given measurements:
d) 5353km_______535.3m
4187_____4186
Use appropriate symbol ‘>’ or ‘<’ for -9 ___ -19.