Ariel made 5 Krispie Treats. She used 8 large marshmallows and 10 mini marshmallows. How many marshmallows did she use altogether?

There were 8 cows and 12 horses at Huckins Farm. 5 horses ran away. How many horses were left?

The Morrison family is having a cookout. They bought 4 packs of hot dogs and 6 packs of hamburgers. They also bought 12 packs of rolls. How many packs of hot dogs and hamburgers did they buy?

Mindy saw 7 kites at the park. She saw 14 balloons. 3 balloons popped. How many balloons did Mindy see then?

Carl had 15 marbles. His friend, Tammy, had 12 marbles. Carl lost 6 of his marbles when he played on the jungle gym. How many marbles did Carl have then?