Even or odd numbers after adding or subtracting quiz. This is an online quiz in which students will solve addition and subtraction problems and find out which sum or difference is an even or add number. Odd numbers cannot be divided by two while even numbers can. Based on such differences, this quiz requires students to make the differentiation for the numbers in the quiz. Review solving addition and subtraction problems as well as finding out even or odd numbers with students in 2nd, 3rd, 4th, 5th and 6th grades.