find the counterexample to show that the statement is incorrect the difference of any two counting numbers will be a counting number.a: 7-4=3, which is not a counting numberb: 3-5=-2 which is not a counting numberc: 10-2=8 which is a counting numberd: there is no counterexample the statement is correct
The counting number are the integers that are used for counting like 1, 2, 3, 4, 5...
The number -2 is not a counting number therefore, the difference between 3 and 5, which are counting numbers is not a counting number. The answer is b.