How Many Altogether
2 birds sat in a tree. 5 more birds flew over and sat with them. How many birds are there altogether?
2+5=7
6 boys were swimming in the pool. 2 of them got out to go eat lunch. How many boys are left in the pool?
6-2=4
3 monkeys played in the forest. 6 more monkeys came over to play with them. How many monkeys are playing altogether?
3+6=9
Joseph's mom made 10 cookies. When she wasn't looking, Joseph and Matthew snuck in the kitchen and ate 5 of them. How many cookies are left?
10-5=5