Story+Problem+10-26-06

“There were some black bean plants growing at Drumlin Farm. Then some of them died because of a frost! How many were left?”

“If you start with some bean plants, after some die, will there be more bean plants or less bean plants? Will we add or subtract?”

“There were 12 bean plants growing at Drumlin Farm. Then 4 of them died because of a frost! How many were left?”