fdisk: plus sign in the blocks number

[Aldo Foot]

The fdisk command displays some partitions with a plus sign in the Bocks number.

root at orion> fdisk -l /dev/sdb
  Device Boot      Start         End      Blocks    Id  System
/dev/sdb1   *           1         127     1020096   83  Linux
/dev/sdb2            128      2039    15358140   83  Linux
/dev/sdb3          2040      2294     2048287+ 82  Linux swap / Solaris
/dev/sdb4          2295      9729    59721637+  5  Extended

I understand the meaning is that not all the blocks are included in
the fdisk value.

Is this meaningful at all when resizing/moving/copying a partition or creating
a volume or raid disk?

~af