A store sold 790 books on Wednesday and 205 books on Thursday. How many books were sold in those two days?
A farmer has 377 hens and 293 ducks. How many birds does he have all together?
On Sunday, 686 tourists visited the museum. On Monday, 126 tourists visited it. How many tourists visited the museum on those days?
One school has 440 students and another has 253 students. How many students are in both schools?