William has a bag of 6 sweets and a bag of 9 sweets.
How many sweets does William have?
William built a tower with 8 blocks. He then added 5 more blocks. How many blocks are in the tower now?
6 children were playing in a playground. They were joined by another group of children. After that, there were 10 children in the playground. How many children were in the group that joined?