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Ep267: Interesting Math Facts · Kidcast Daily

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  Spin the wheel, let's take a ride.
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  Sports and science bursting from inside a world of wonder open
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  wide. Come on kids, let's amplify kid
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  cats. Daily starts your day.
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  Fun and laughter come your way. Sports and trivia games galore.
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  Welcome to Kick Ass Daily, where we bring news, trivia, fun
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  facts, and more just for curious kids like you.
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  Today we're going on a journey into the world of interesting
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  math facts. Get ready to discover some
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  surprising, strange, and super cool things that numbers can do.
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  Whether you love math, find it tricky, or are just a little bit
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  curious, there's something here for everyone.
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  Let's start with something you use everyday numbers.
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  Did you know that numbers have been around for thousands of
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  years? People used to count with their
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  fingers, pebbles or even Marks and clay.
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  The numbers we use today, like 1-2 and three, are called Arabic
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  numerals. They were invented in India,
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  traveled to the Middle East, and then spread across the world.
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  Numbers help us keep track of time, measure things, and play
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  games. Can you imagine trying to bake
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  cookies without numbers to count the ingredients or set the
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  timer? It would be pretty messy.
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  Now here's a fun fact. 0 is a #2.
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  But for a long time, people didn't have a symbol for 0.
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  Ancient civilizations like the Romans and Greeks did not use 0
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  at all. The #0 was first used in India
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  and it made math much easier. With 0, you can write big
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  numbers, solve new kinds of problems, and even show that you
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  have nothing left, like when your cookie jar is empty.
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  Let's talk about patterns. Math is all about spotting
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  patterns and making sense of them.
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  One famous pattern is called the Fibonacci sequence.
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  It starts like this, 011235813 and so on.
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  Each number is made by adding the 2 numbers before it.
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  Fibonacci numbers pop up all over nature.
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  If you count the petals on some flowers or the spiral of a
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  seashell, you might find these numbers.
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  Next time you're outside, try counting flower petals to see if
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  you can spot a Fibonacci number. Here's our first trivia
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  question. What is the next number after 13
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  in the Fibonacci sequence? Remember, you add the 2 numbers
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  before it. The answer is 21.
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  If you add 8 and 13, you get 21. Great job if you figure it out.
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  Now let's move on to another cool topic, prime numbers.
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  A prime number is a number that can only be divided by 1 and
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  itself. For example, 2357 and 11 are all
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  prime numbers. These numbers are like the
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  building blocks of all other numbers.
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  If you multiply prime numbers together in different ways, you
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  can make any other whole number. For example, 2 * 3 is 6 and 2 *
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  2 * 3 is 12. Prime numbers are used in
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  computer codes that keep your information safe online.
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  Did you know that 2 is the only even prime number?
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  All other even numbers can be divided by two, so they can't be
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  prime. Mathematicians have found prime
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  numbers that are over 1,000,000 digits long.
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  Imagine trying to write that down.
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  You would need a lot of paper. Here's a yes or no question.
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  Do you think there are an infinite number of prime
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  numbers, or do they ever stop? The answer is yes, there are an
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  infinite number of prime numbers.
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  No matter how high you count, there's always another prime
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  number waiting to be found. Let's talk about another amazing
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  number ππ is a very famous number in math.
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  It's the number you get when you divide the distance around a
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  circle by the distance across it.
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  No matter how big or small the circle is, you always get the
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  same answer about 3.14159. But π never ends.
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  It goes on forever and the digits never repeat in a
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  pattern. Some people like to memorize as
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  many digits of π as they can. The world record is over 70,000
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  digits. Here's a trivia question.
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  If the circumference of a circle is 31.4cm and the diameter is 10
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  centimeters, what number do you get if you divide 31.4 by 10?
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  The answer is 3.14, which is π. Let's look at some math tricks
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  you can try at home. Did you know that if you
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  multiply any number by 9, the digits of the answer will
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  usually add up to 9? For example, 9 * 4 is 36.
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  If you add 3 and 6, you get 9. Try 9 * 7, That's 63.
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  Add six and three and you get 9 again.
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  Isn't that neat? You can try this with any number
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  from one to 10. Here's another interesting fact.
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  When you multiply a number by itself, it's called squaring.
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  For example, 4 * 4 is 16, so 16 is a square number.
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  Did you know that if you add up any number of consecutive odd
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  numbers starting from 1, you always get a square number?
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  One is one, 1 + 3 is four, 1 + 3 + 5 is 9, and so on.
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  You can try this with as many odd numbers as you like.
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  Now here's a yes or no question to keep you thinking.
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  If you add up the numbers 123 and 4, do you get a square
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  number? The answer is no. 1 + 2 + 3 + 4
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  is 10, which is not a square number.
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  Let's talk about something called palindromic numbers.
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  A palindrome is a number that reads the same forwards and
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  backwards. For example, 121, thirteen, 31,
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  and 12,321 are all palindromic numbers.
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  Palindromic numbers are fun to look for and they pop up in
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  unexpected places like dates and phone numbers.
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  Now for another trivia question. What is the smallest palindromic
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  number that is greater than 100? The answer is 101.
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  Here's another cool math fact. The number 12 is called a dozen,
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  and it's special because you can divide it evenly by 12346 and
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  12. This made it super useful for
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  ancient traders who needed to split things up into equal
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  parts. That's why eggs, doughnuts, and
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  some other things are still sold by the dozen today.
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  Let's try another yes or no question.
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  Is 15 a number that can be evenly divided by 4?
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  The answer is no. If you divide 15 by 4, you get 3
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  with the remainder of three. Math is all around us, and it
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  can be really fun when you start to spot the patterns and tricks.
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  From the spirals of shells to the numbers on a clock, math
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  helps us understand the world in new ways.
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  Whether you're measuring the height of a tree, figuring out
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  how many minutes until your favorite show starts, or
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  splitting a pizza with friends, you're using math.
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  Let's do a quick recap of what we learned today.
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  We talked about where numbers come from and how important zero
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  is. We discovered the Fibonacci
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  sequence and how it shows up in nature.
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  We learned about prime numbers and why they're so special.
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  We talked about the never ending digits of π and some neat math
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  tricks like multiplying by 9 and adding odd numbers.
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  We explored palindromic numbers and why the number 12 is so
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  useful. Thanks for joining us today on
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  Kit Cast Daily. Keep looking for patterns,
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  asking questions, and having fun with math.
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  Remember, every time you solve a problem or spot a pattern,
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  you're becoming a math explorer. See you next time for more
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  amazing facts and discoveries right here on Kit Cast Daily.
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