There are 104 students in the fourth grade at allisons school. one day 15 4th graders were absent how many 4th graders were at school that day

This is a simple subtraction question. To find the answer, you simple need to subtract 15 from 104. This equals 89, so there were 89 4th graders at school that day in total. In the instance you're unsure that a subtraction equation is right, you can also add your answers back together to double check, so 89 + 15 = 104.