There are 28 students in a classroom. Half of them have 5 notebooks each and the other half have 3 notebooks each. How many notebooks in total are in the classroom?
Half of the class consists of 28 students / 2 = <T>divide(28, 2)=14.0 students.
One half of the students have 14 students * 3 notebooks/student = <T>multiply(14, 3)=42 notebooks.
The other half have 14 students * 5 notebooks/student = <T>multiply(14, 5)=70 notebooks.
There are 42 notebooks + 70 notebooks = <T>add(42, 70)=112 notebooks in total in the classroom.
