Question

2. Say divisibility test of:
1) 2
2) 3
3) 4
4) 5
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Answer 1

Answer:

2

The last digit is even (0,2,4,6,8)

3

The sum of the digits is divisible by 3

4

The last 2 digits are divisible by 4

1312 is (12÷4=3) Yes

7019 is not (19÷4=4 3/4) N

5

The last digit is 0 or 5

175 Yes

809 No

Answer 2

Answer:

2- if the unit digit of a number is even number, then the number is divisible by 2

3-If the sum of the digits of a number is divisible by 3, then the number is divisible by 3.

4- if the last two digits( unit and tens digit) are divisible by 4 then number is divisible by 4

5- if the last digit of a number is 0 or 5, then the number is divisible by 5

hope it's helpful