Subtraction

There are 6 birds sitting on the tree and 5 on the ground. How many birds are there altogether?

Ten boys were playing in the park. Came four more girls to play. How many children were in the park?

I had 12 balloons. I popped 3 of them. How many balloons were left?

There are 15 marbles. 6 are red and the rest are blue. How many blue marbles are there?

Tim put 3 toy cars into the shopping bag. Mom put 4 more toy cars into the shopping bag. How many toy cars are the in the shopping bag?

Jen has 9 pencils. Ann has 2 pencils. How many fewer pencil does Ann has than Jen?

7 - ____ = 4

____ - 5 = 12

____ - 10 = 8

16 - ____ = 11