3.2 Divisibility Test Exercise

Which of the following numbers are divisible by 5:

Answer explanation

Numbers that end in 0 or 5 are divisible by 5.

Which of the following numbers are divisible by 4:

Answer explanation

If the last two digits of a number form a number that is a multiple of 4, then the original number is a multiple of 4.

Which of the following numbers are divisible by 3:

Answer explanation

If the last two digits of a number form a number that is a multiple of 4, then the original number is a multiple of 4.

Which of the following numbers is not divisible by 7:

Answer explanation

If the last two digits of a number form a number that is a multiple of 4, then the original number is a multiple of 4.

What is the smallest positive perfect square that is divisible by both 2 and 3?

How many numbers from 1 through 400 have a 2 in the units place (ones place) and are divisible by 4?

Answer explanation

Both ABC and 3D8 are three-digit numbers such that ABC - 3D8 = 269.

If 3D8 is divisible by 9, then what number does ABC represent?

Answer explanation

Answer explanation