Number Theory-1

The sum of any two even integers is

• odd

• even

The product of any two even integers is

• odd

• even

The sum of any two odd integers is

• odd

• even

The product of any two odd integers is

• odd

• even

The sum of an even integer and an odd integer is

• odd

• even

The product of an even integer and an odd integer is

• odd

• even

If the square of an integer is even, then the integer is

• odd

• even

If the square of an integer is odd, then the integer is

• odd

• even