Ned rode his bike 7 miles to the library.
He took a shortcut on the way home which was only 5 miles long.
How many miles did Ned ride altogether?

Anne ate 6 cookies.
Samantha ate 4 more cookies than Anne.
How many cookies did Samantha eat?

Henry gave 5 stickers to his younger brother.
Now he only has 9 stickers.
How many stickers did Heny have at first?

Derek and Larry have 15 books together.
6 of the books belong to Derek.
How many books does Larry have?

Angela had 8 computer games.
She got 3 more for her birthday.
How many computer games did Angela have then?