Text Box: On which day of the week were you born?
This formula will work out your birth'DAY'
my D.O.B. is 
1) Write down the year, in full, in which you were born

 y =
Text Box: Jan     31
Feb     28 or 29
Mar     31
Apr     30
May    31
June   30
July    31
Aug    31
Sept   30
Oct     31
Nov    30
Dec    31
Text Box: Leap years
A year is a leap year if it is divisible by 4 but not 100.  If it is divisible by 4 and 100, then it is not a leap year unless it is also divisible by 400.
2) Work out the TOTAL number of days up to and including your birthday in the year in which you were born. Was it a leap year?
 d =
 f = the whole number part     only, to this answer
 f =
4) Work out   
y + d + f
 y + d + f =
5) Divide   (y + d + f) 
by 7 and find the remainder
 b  is the remainder
b =
Text Box:   0   Fri
  1   Sat
  2   Sun
  3   Mon
  4   Tues
  5   Wed
  6   Thurs

6)  Convert the remainder to the day you were born, your birth'day'.

I was born on a    
Text Box: What day were your parents born on?
On which day of the week will your 18th birthday fall?







Eday@huishepiscopi.somerset.sch.uk 01458 250501 HUISH EPISCOPI SCHOOL SCIENCE COLLEGE 2005 Feedback