Even numbers and odd numbers

EVEN NUMBER:-An integer which is completely divisible by '2'(unit place should be 0,2,4,6,8) is called an even number.Ex-0,4,6,8,10,1982,-16,-1470............
ODD NUMBER:-An integer which is not completely divisible by '2'(unit place should be 1,3,5,7,9) is called an odd number.Ex- 1,3,5,7,9,11,-25,-123,1427........

Important properties-

1. Difference between any two consecutive even or odd numbers is 2.
2. Sum of even numbers is an even number.ex- 4+8=12, 24+12+8=44.
3. Sum of any two odd numbers is an even number.ex- 1+3=4,7+9=16,11+(-3)=8.
4. Sum of an even number and an odd number is an odd number.ex-1+2=3,7+22=29,15+(-8)=7.