7.10 + 7.80 = 14.90. If the number refers to a unit of currency, don't forget to include the appropriate currency unit. If the number does not refer to a unit of currency, then the final trailing zero is unnecessary.
710
710 + 55 = 765
710 + 13 = 723
710 + 35 = 745
780 to 70 to 710 to I-95
6 + 710 = 716
If you add 25 to 710, you will get 735.
It is 780+20 = 800
33 + 747 = 780
3084
1,320
710