Story+Problem+10-20-06

“At Drumlin Farm, the Orcas walked by some sheep (or something else we saw). When they walked by again, some of the sheep were gone! How many sheep were left? Will there be more or less, add or subtract?

“At Drumlin Farm, the Orcas walked by 8 sheep (or something else we saw). When they walked by again, 4 of the sheep were gone! How many sheep were left?”