- 1 Definition of Age
- 2 How to calculate the age
- 3 shows examples of how to calculate the age
- 4 References
Definition of Age
Age is a confined time between the date of birth until the moment by which, in other words, is the time that passes from the date of the birth of the person to the date you want to calculate the age he has. And expresses the old year, and the day, month, or Gregorian calendar AH, can know the age of any person also by date of birth, or by knowing the day corresponding to the last holiday birthday. In the case of a person does not know the date of birth can be used completely to determine the chapter where he was born and determine the way the year of his birth. 
Is linked to human life the extent of his wisdom and experience in life, when you measure age in time, it should be noted here that his account differs depending on the culture and civilization of the State in which the person was born, in some countries are calculating the age of the first day was born person, others considered the age of newborn baby full year, but in Chinese cultures. in some of the systems are calculated age by the Chinese lunar year, if a child was born in the last two days in the Chinese year-old Chinese beginning of the year he was born two years with only two days ago would be,. There are also many programs and computers age, working at the expense of human life precisely at the place where he was born and the date of birth to be on the way account age by the minute, the hour, day, month, and year.  
How to calculate the age
To calculate the age of a person manually, it is necessary to use some simple calculations to get the real age at the date or a certain time, and what some of the procedures and steps that show how to calculate the age comes: 
- First: Bring a pen and paper so as to perform calculations on them.
- Second, dates arranged in a vertical or vertical, so today will be under the day, month under the month, and the year under the year, noting here the importance of the order in history to be calculating the age at which is placed at the top The date of birth at the bottom.
- Third, put subtracting the signal between the two dates, and by asking the date of birth from the date you want to calculate the age at which, and begin the process of subtraction of the day, Valchehr, Sunnis, may sometimes be forced to take months and years box if necessary.
Examples show how to calculate the age
- Example 1: Calculate the age of a person in the history of (11.13.2018), note that the date of birth was in (05/07/2001). 
- Example 2: Calculate the age of a person in the history of (03.25.1968), note that the date of birth was in (29/01/1948). 
- Example 3: Calculate the age of a person in (04/12/1996), note that the date of birth was in (07/15/1954). 
- Example 4: Mona traveled to study medicine, at that time was 18 years old and 7 months and 14 days, if she learned that she spent a period of 6 years, 5 months and 19 days abroad, I figured her when she returns. 
- ↑ By United Nations، Principles and Recommendations for Population and Housing Censuses، صفحة 145. بتصرّف.
- ↑ "Age Calculator", www.calculator.net. Edited.
- ↑ "Age Calculator", www.myagecalculator.com. Edited.
- ^ A b t w By Essam El-Din Galal, the wonders of numbers and figures, page 112. Adapted.
- ↑ Bajs Khamaiseh, Ibrahim Samadi, Fadwa Junkie (2007), Mathematics Teacher's Guide Grade V (first edition), Jordan-Amman: Ministry of Education Curriculum Management and textbooks, (File 5 Module IV measurement), page 100, the first part. Adapted.
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