How to calculate the birth dates of boys and girls?

Seven seven forty-nine, when did you ask your mother? Except the mother's birth year, plus 19, both odd and odd pairs are even. If the parity is improper, the life span will not be long.

Solution: First count 49 on the abacus, then add the number of months the mother was pregnant, and finally get the number. Excluding the number of years when the mother was born from the total, every woman is male and every couple is female. If a woman is born alone and a man is born in pairs, then premature life will change. If the number is forty-nine, if it is pregnant in the first month, it is fifty and the mother's year is thirty-one. Excluding the mother's year, this number is only one or nineteen, which is a single, male. Everything else is like this.

7749, ask mother when (lunar month of conception), subtract mother's birth year (mother's one-year-old age), and add 19, one is male and the other is female.

For example, if a 29-year-old person is pregnant in February of the lunar calendar, the formula is: 49+2-29+ 19 = 4 1, and a boy is born.

Love tips:

1. The lunar month must be based on the actual and accurate date. Because, on some days, the lunar calendar and the solar calendar are one month. How many days in July 2005 are July of the lunar calendar and July of the solar calendar? It depends on the date of your pregnancy. It's the day of conception. Not the last period.

2. One year old.

3. The above is for reference only. If you miscarry, you will be at your own risk.