Word problems/3-digit math

Bob's store has 489 hats. He made 132 more. How many does he have now?

Carol took 7 pictures at the zoo and 44 at the museum. She deleted 36. How many are left?

812+105=

315-105

687-188

Sam has 383 baseball cards. Jim bought 171 of them. How many does Sam have left?

133+185=

Ann has 36 sweaters and 45 t- shirts. She sold 12 in a yard sale. How many does she have now?

18 kids were playing a video game. 10 more joined. Then, 3 logged off. How many are playing?

635-131