Math Worksheets

Archive for the ‘Number Worksheets’ Category

What is a Googol?

No, not the search engine Google, but the actual Number, Googol, which they kind of named themselves after… A googol is the number 1 followed by 100 zeros. So if anyone asks you how many 0s are in a googol? The answer is 100.

History of Googol – Googol and Googolplex

American mathematician Edward Kasner needed to solve a math problem using enormous numbers. His nine year old nephew, Milton Sirotta, made up the term ‘ googol ‘. Dr. Kasner made up the word ‘ googolplex ‘ to Mean 1 with a googol of zeros. Googol and googolplex are more simply written in exponents. the googolplex is the largest named number.

Other named numbers

Name of numbers	Number of zeros
billion	9
trillion	12
quadrillion	15
quintillion	18
sextillion	21
septillion	24
octillion	27
nonillion	30
decillion	33
undecillion	36
duodecillion	39
tredecillion	42
quarthordecillion	45
qumdecillion	48
sexdecillion	51
septdecillion	54
octodecillion	57
novemdecillion	60
vigintillion	63
googol	100

Fibonacci sequence or Fibonacci series is a series of Fibonacci numbers created by Leonardo Fibonacci. Leonardo Fibonacci noticed patterns of Fibonacci spiral all around him almost 800 years ago. The Fibonacci numbers in nature or Fibonacci sequence in nature fascinated Leonardo Fibonacci so much that he later described it mathematically.

Leonardo Fibonacci and the Fibonacci sequence

Almost 800 years ago, Italian mathematician LEonardo Fibonacci noticed that there were patterns all around him – in the petals of a flower, the branches or a tree, adn the speiral of a snail shell. In 1202 Leonardo Fibonacci discovered a way to describe these patterns through mathematics. Leonardo Fibonacci created a number series known as the Fibonacci sequence or Fibonacci series.

What does the Fibonacci numbers or Fibonacci series look like?

1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, …

How to create a Fibonacci sequence and Fibonacci numbers?

To create Fibonacci series of Fibonacci numbers, each number except the first 1 is added to the number before itself. The sum becomes the next Fibonacci number in the Fibonacci series.

The first Fibonacci number in the Fibonacci sequence is 1

The second Fibonacci number in the Fibonacci sequence is 1

The third Fibonacci number in the Fibonacci sequence is 1 + 1 = 2

The fourth Fibonacci number in the Fibonacci sequence is 2 + 1 = 3

The fifth Fibonacci number in the Fibonacci sequence is 3 + 2 = 5

and so on…

Question: Please help me with this maths worksheet ?

9, 16, 6, 1, 12, 17, 11, 25, 24
^ those are the numbers that need using.

d) Write down the number that is the reciprocal of 1/9.

Answer:

2. a) Express the following numbers as products of their Prime factors.

(i) 56

Answer:

ii) 60

Answer:

b) Find the highest common factor of 56 and 60.

Answer:

c) Find the lowest common multiple of 56 and 60

Answer:

3. The number 360 can be written as 2a x 3b x 5c.

Calculate the values of a, b and c.

Answer:

Answer: 1. The reciprocal of a faction is the fraction turned upside down. For example, the reciprocol of 1/2 is 2/1.

2. A number as the product of its Prime factors: multiply the prime number factors together to get the number. For example, the Prime factors of 12 are 3*2*2.

3. The highest common factor is found by factoring each number and finding the highest number they have in common as a factor. For example, 15 and 10 have 5 as their highest common factor. (Factors are number that multiplied together equal the number.)

4. The lowest common multiple can be found by finding the Prime factors of the numbers and taking the largest groups of each and multiplying them together. For example, the factors of 50 are 2*5*5; the factors of 12 are 2*2*3. So the lowest common multiple is 2*2*3*5*5.

Math Games & Lessons : Math Tricks With Numbers