Answer
a) 12, 5
b) 0, 12, 5
c) -7, 0, -3, 12, 5
d) -5, -7/3, 0, 3.14, 5/4, -3, 12, 5
e) $\sqrt 5$
Work Step by Step
a) Natural numbers include all counting numbers from 1 onwards.
b) Whole numbers include all counting numbers from 0 onwards.
c) Integers are whole numbers that can be positive, negative or 0.
d) A rational number can be written in the form p/q, where q is not 0.
e) An irrational number is one that cannot be expressed as a fraction.
