No, pi is a set number.
You measure the temperature every day for a year, add up all these temperature readings then divide the number you get by the number of days in a year (365). You can then improve this by finding the average year on year and by add up all the yearly averages and divide the number you get by the number of years you have added up.
Every time. No exceptions.
Move a step for every number your adding
if you add the digits of the number such as 81 8+1=9 every time, the digits of the number will add up to 9
Yes.
Perfect squares.
increase by one in tens place
about every 3 months you need to add at least 1 bag of salt.
This way scientists can adjust their answers or add to theirs.
One
You will need to add the model of Smith and Wesson to your serial number to get the correct year of manufacture.
every year you have a left over of 1/4 day so every four years you add an extra day, this is called a leap year. there are 365 days a year and 366 days in a leap year