Rewrite the following statements in the form of conditional statement.
The square of an odd number is odd.

1

(a)

If the number is odd, then its square is odd number.

Rewrite the following statements in the form of conditional statement.
The unit digit of an integer is 0 or 5, if it is divisible by 5.

1

(a)

If an integer is divisible by 5, then its unit digit's are 0 or 5.

Rewrite the following statements in the form of conditional statement.
The square of a prime number is not prime.

1

(a)

If the number is prime, then its square is not prime.

Write down the contrapositive of the following statements.
If n is a natural number, then n is an integer.

1

(a)

If n is not an integer, then it is not a natural number.

Write down the contrapositive of the following statements.
If x and y are negative integers, then xy is positive.

1

(a)

If xy is non-positive integer, then either x or y is non-negative integer.