Question

er the questions below. be sure to mark all answers that apply.

	283	280	515	none of these

(a) which numbers are divisible by 5?|□|□|□|□|
(b) which numbers are divisible by 2?|□|□|□|□|
(c) which numbers are divisible by 10?|□|□|□|□|

Explanation:

Step1: Recall divisibility rules

A number is divisible by 5 if its last - digit is either 0 or 5. A number is divisible by 2 if its last - digit is even (0, 2, 4, 6, 8), and a number is divisible by 10 if its last - digit is 0.

Step2: Check divisibility by 5

For 283, the last - digit is 3, so it's not divisible by 5. For 280, the last - digit is 0, so it's divisible by 5. For 515, the last - digit is 5, so it's divisible by 5.

Step3: Check divisibility by 2

For 283, the last - digit is 3, so it's not divisible by 2. For 280, the last - digit is 0, so it's divisible by 2. For 515, the last - digit is 5, so it's not divisible by 2.

Step4: Check divisibility by 10

For 283, the last - digit is 3, so it's not divisible by 10. For 280, the last - digit is 0, so it's divisible by 10. For 515, the last - digit is 5, so it's not divisible by 10.

Answer:

(a) 280, 515
(b) 280
(c) 280