Such as: -3,-1, 1, 3, 5, 7. ......

2. The number obtained by dividing two numbers is "quotient".

If 8 divided by 4 equals 2, 2 is the quotient.

In addition, the first floor is not right: 2, 4, 6 ... such numbers are called even numbers, which means even numbers.

The second floor is also wrong: a number divided by 2 has a remainder, and the remainder is 1, which is called odd number.