Level 2
There were 2500 students in a school. 678 students went out for an excursion and the rest remained in school. Of the students who remained in school, 789 of them were boys. How many girls remained in school?
Level 2
Ben and Sam played a game. Ben's high score was 256 and Sam would need another 80 points to equalize with Ben. How many points did they score altogether?
Level 2
A total of 3500 students visited an amusement park on a Saturday. 1232 of them were boys. How many more girls than boys visited the amusement park on that day?