Addition Mental

After digging in his backyard, John found seven coins for his collection. If he already had nine coins, how many coins did John have after the new ones?

Mary and Lucy are planning on joining forces to have the most amazing doll house on the block. If Mary has six dolls, and Lucy has five, will they be able to beat Stephanie’s eight-doll house?

Joshua told his friend that his sister is nine years older than himself. If Joshua is nine at the moment, how old is his sister?

Mickey is a little behind in his work. He has four math questions to answer plus nine questions for geography. How many questions does he have to answer?

There are five blocks from Eric's house to Andy's house, and another five from Andy's house to the school. How many blocks does Eric walk each morning, if he always picks up Andy on his way to school?

Susan's grandpa told her in one of his stories, “There we were, all six brothers and seven sisters running away from a 'gator”. Susan couldn't believe her ears. How many siblings were escaping from the alligator, according to her grandfather?

Dylan grew three inches taller last year, and five inches taller this year. How many inches taller did Dylan grow in the last two years?

During arts and crafts, Noah thought he could make a twelve-wheeled toy car. He took a regular toy car, and glued seven wheels to it. Did he make a twelve-wheeled car?

For her birthday, Donna really wanted some binoculars, but her dad bought her five pairs of socks instead. She already had eight pairs of socks. She didn't even wear socks, so she gave all of them to the thrift shop. How many pairs of socks did she give away?

Mark really likes cold drinks, so when he saw that his mother had put only four ice cubes in his juice, he had to put in six more. In the end, the juice was not only cold, but watery. How many ice cubes did Mark put in his juice altogether?