3rd grade assessment

Since Ms. Didonato's class tallied up their picture values last week, I brought all of them home to doublecheck. For example, the picture above should equal $8.52 Here's the breakdown of how well they did:
12 students had correct values that matched their pictures
 5 students did not tally up to match their pictures exactly but had correct values that matched their tally marks
7 students had incorrect calculations, most of which were off by a coin.