Problem 2.1: Which of the following numbers are integers? -4, 3/2, 18, -7/8, 0 [Solution]

Problem 2.2: Which of the following numbers are natural numbers? -7, 63, 0, 5/2, 14.2, 17 [Solution]

Problem 2.3: Which of the following numbers are rational numbers? 14/11, -5/12, -6, 0,

, 82, 101 2/3 [Solution]

Problem 2.4: Which of the following numbers are whole numbers? 0, 8, -16, 3/2,

[Solution]

Problem 2.5: Which classification(s) do the following numbers fit into?
a) 17
b) -3/2
c)

d) 0
e) -5
f) 15/4 [Solution]