There was some ducks in the pond. Twenty eight ducks flew away. Seven more arrived at the pond. Now there are 43 ducks in the pond. How many ducks were in the pond to start?
64 ducks in the pond, You remove 7 from 43 since it is asking you how many it were from the start and the seven came after 28 of them flew away. so then it leaves you with 36 ducks, so then you do 28+36=64
