There were 20 dominoes on the table. My brother took 5 upstairs and my mother took 5 downstairs, how many do I have left?, The pizza has 10 slices. I ate 7 and my friend at 2. How many slices were left?, Gwen was playing a trivia game. She first won 34 points. Then lost 10. Then won 22. How many points did she have?, Victor bought 19 books from the store. He gave 11 to his sister and then his mom gave him 5. How many books does he have?, There were 26 pets at the pet store. 10 were sold on Monday and 12 on Tuesday. How many were left on Wednesday?, Sam bought 11 boxes of chocolate candy and gave 6 to his brother. If each box has 9 pieces inside, how many pieces did same still have?, Vincent bought 3 packs of dominoes. Each pack had 10 dominoes. He already had 12 dominoes at home. How many does he have now?, A chef needs 25 tomatoes for a meal. He has already cut 15. If each tomato takes 3 minutes to cut. How long will it take for him to cut the rest?, A new school needed 12 windows. The builder had already installed 3. If it takes 8 hours to install each window, how long will it take to install the rest?, Mrs. Timm invited 13 friends for a party, but 6 couldn’t come. If she wanted to buy enough cookie so each person could have exactly 5, how many should she buy?.