-8 is an integer, Natural numbers are 1,2,3,4 Whole numbers jut add 0, and are 0,1,2,3 Integers are negative numbers -8, -4, -1 Rational numbers add fractions -1/2, 3/4, 5/8 Irrational numbers are numbers that cant be fractions such as pi, because the fraction goes on forever Real numbers are rational and irrational Learn this and don't forget and you will be fine with these type of questions