01. WHOLE NUMBERS
Explanation:
(−, ÷)
Solution:
Closure property in whole number states that if we do the operation between two whole number we should get a whole number. 2, 5 are whole number. 2 - 5 = (-3) is not a whole number. \(\frac{2}{5} ?= 0.4\) is not a whole number. Closure property is not satisfied w.r.t. subtraction and division in whole numbers.