Original sentence: The difficulty of targeting the actual shipyard meant that many residential neighbourhoods were instead bombed, during the Barrow Blitz 83 civilians were killed (with a further 330 injured) and over 10,000 houses where left damaged or destroyed (around 25% of housing in the town)
Edited sentence: The difficulty of targeting the actual shipyard meant that many residential neighbourhoods were instead bombed, during the Barrow Blitz 83 civilians were killed (with a further 330 injured) and over 10,000 houses were left damaged or destroyed (around 25% of housing in the town)