Answers to Questions Kids Ask! - Where "Why?" Turns to "Wow!"
Questions About Math
A googol is a 1 with a hundred zeroes behind it. We can write a googol using exponents by saying a googol is 10^100. The biggest named number that we…
You’ve seen the sign for infinity, it looks like an 8 on it’s side. Infinity is not a number or a thing, but the idea behind many notions: * no…
Most everyone is familiar with the infinity symbol–the one that looks like the number eight tipped over on its side. The infinite sometimes crops up in everyday speech as a…
Division by zero is an operation for which you cannot find an answer, so it is disallowed. You can understand why if you think about how division and multiplication are…
A perfect number is a whole number, an integer greater than zero; and when you add up all of the factors less than that number, you get that number. Examples:…
There is no largest number! Why? Well, 1,000,000,000 (1 billion) can’t be the largest number because 1 billion + 1 is bigger – but that is true for any number…
How can you tell whether a number is divisible by another number (leaving no remainder) without actually doing the division?
A Number is Divisibility by: 2 : If the last digit is even, the number is divisible by 2. 3 : If the sum of the digits is divisible by…
By definition, pi is the ratio of the circumference of a circle to its diameter. Pi is always the same number, no matter which circle you use to compute it….
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Word of the Daypoltergeist:
poltergeist: a ghost or spirit supposed to manifest its presence by noises, knockings, etc.
Born on this dayOctober 28, 2014
1903 - Evelyn Waugh
1909 - Francis Bacon
1927 - Dame Cleo Laine
1929 - Joan Plowright
1938 - David Dimbleby
1941 - Hank Marvin
1948 - Dennis Taylor
1955 - Bill Gates
1967 - Julia Roberts