20634 - 20554 = 80
The Roman numeral for the number 20554 would be (XX)DLIV
82
91
8
a minus take away a minus makes a minus
A minus plus a minus is not necessarily positive. A minus multiplied by a minus is. The reason being that the minus of a minus is a positive. It's a double negative.
A minus by a minus by a positive gives a positive.
A bigger minus.
-17
Yes it does. A minus is the opposite of something, so the minus of a minus is a plus.
Looking for proper swimming ground as well here. Apparently, 4 clubs are under construction at the moment source: http://uaeinteract.com/docs/Dubai_sports_clubs_to_have_semi-Olympic_swimming_pools/20554.htm Until then, the choice seems very limited... Cheers
Same mathematical signs equal plus Different mathematical signs equal minus Plus Plus = Plus (+)(+) = + Minus Minus = Plus (-)(-) = + Plus Minus = Minus (+)(-) = - Minus Plus = Minus (-)(+) = - So the direct answer to your question would be: plus minus equals minus