Why does 78 minus your age plus 40 work?
Regarding this, why does 79 minus your age plus 40 work?
79+40=119. That's the number of years from 1900 to 2019. Subtract your age from 119 and you'll get the year you were born. It only works well at the end of the year however, because at that point, most people will have had a birthday in the current year.
Secondly, how do you figure out someone's age trick? To do a number trick to guess someone's age, start by asking them to use a calculator to multiply the first number of their age by 5. Then, have them add 3 before doubling the answer. Next, they should add the second number of their age. Finally, tell the person to subtract 6 and the answer will be their current age.
Subsequently, one may also ask, how does the birthday math trick work?
"Threes" Birthday Math Trick
- Enter the secret number.
- Multiply by 3.
- Add the secret number, then subtract 5.
- Multiply by 3, then multiply by 3 again.
- Add the secret number, then subtract the number of their favourite month (you don't have to know what month that is!)
- Multiply by 3, then multiply by 3 again, and then again a third time.
What is it called when you are the same age as the year you were born?
A Beddian Birthday occurs when the age a person is turning, is the same number as the last two digits of their birth year. The Beddian birthday is named for NYC firefighter Bobby Beddia who noted this coincidence. Someone born in 2015, will experience their Beddian Birthday when they are 15!