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?