# A Backwards Day

A palindrome is a word that is spelled the same backwards and forwards, like toot and racecar. Can you think of any others? It turns out numberscan do the same thing — like today’s date! Today is written as 9/19/19, which means the 19th day of the 9th month (September). In fact, we’re just ending a whole stretch of palindrome days, starting with 9/10/19 up to today. Don’t forget, 9/1/19 was a palindrome, too! We’ve been having cool streaks like this for the past few years, like 8/13/18, and 7/12/17…see if can you figure out when they happen, and when they don’t!

Wee ones: How do you say “123” in backwards order?

Little kids: If you say “221” in backwards order, is it the same or different? How about 454?   Bonus: How old will you be the next time your age is the same backwards and forwards?

Big kids: If you add up all the digits in today’s date (9 + 1 + 9 + 1 + 9), how much greater is the sum than the sum of the digits of this month’s first palindrome, 9/1/19?  Bonus: The digits of 9/1/19 add up to 20. What’s the next date that will add up to 20 this way?

The sky’s the limit: If you’re allowed to write both the month and year as 2 digits, when’s the first year when we won’t have any palindromic dates? (For example, in 2020 you can write February as 02).