Question

There are 17 students in the third grade and twice that number in the fourth grade. There are

11 boys and 19 girls in the second grade. How many students are in grades 2 through 4
altogether?
students

Answer 1

17 - third grade
17 x 2 = 34 - fourth grade
11 + 19 = 30 - second grade

All together: 17+34+30 = 81

Answer = 81 students

Answer 2

17 + 34 + 11 + 19 = 91