1500m = 150000cm so it is more
1km = 1000m so the 1500m only
less
one quarter is less than one third
more than this and less than that more than this and less than that
less than
The "more than" symbol is the > symbol. The "less than" symbol is the < symbol.
A mile is slightly longer than 1500m.
There are no numbers that are more than 5 but less than 3. 3 is less than 5, so anything that is less than 3 is also less than 5.
It depends on what you mean by "more or less". If more or less is used to indicate approximately or nearly equal to, then the symbol used is ≈ which look like a wriggly equals symbol. If more or less is used for more than or less than but not equal to, then you would use an equals sign with a diagonal line through it ≠ which stands for "not equal to" You are right but if it's more than or less than it would look like this (less than)<(more) or (more than)>
a is 6 less than d.
2 is less than 3
2 is more than 1.