4,700.
200 percent of 400 = 800200% of 400= 200% * 400= 200%/100% * 400= 800/1 or 800
200 + 200 + 200 + 200 + 200 = 1000
400 * 200 = 400 * 100 * 2 = (400 * 100) * 2 = 40000 * 2 = 80000
Since 214 is a bit over 200, and 182 is a bit below 200, you could reasonably estimate them both as being 200 and therefore the sum of the two would be approximately 400. The actual sum is 396, which is very close to 400.
400 + 200 = 600
400
Their sum is 400.
200 + 400 = 600
1190
287 + 491 + 200 + 500 + 300 + 500 + 280 + 400 + 290 + 490 = 3738
200 + 300 200 + 200 + 100
4,700.
2099
200 percent of 400 = 800200% of 400= 200% * 400= 200%/100% * 400= 800/1 or 800
200 = 400
200 + 200 + 200 + 200 + 200 = 1000