0
Anonymous
400 + 500 = 900
Wiki User
1,500
500 plus 800 equals 1,300.
500 - 5x = 100 500 = 100 + 5x 400 = 5x x = 80 Check it. -400 + 500 = 100 It checks.
100 + 400 = 500
346
(((800 plus 400) plus 400) plus 500) plus 500 = 2600
287 + 491 + 200 + 500 + 300 + 500 + 280 + 400 + 290 + 490 = 3738
900
1,620
Yes.
500+600= 1,100