This document contains several fun facts and tricks about mathematics. It discusses large numbers like quadrillion and googol. It also shares a special number (142857) that maintains its digits when multiplied. Finally, it provides 4 number tricks that involve thinking of a number and performing math operations to reveal the answer.

1. Mathematics 101
With
Mr M.Maponya and Mr D.Diergaardt

2. Fun facts for Maths
• What comes after a million, billion and
trillion? A quadrillion, quintillion, sextillion,
septillion, octillion, nonillion, decillion and
undecillion

3. Google
• The name of the popular search engine
came from a misspelling of the word ‘googol’,
which is a very large number (the number one
followed by one hundred zeros to be exact).
100000000000000000000000000000000000
000000000000000000000000000000000000
0000000000000000000000000000000000

4. numbers
111111111 x 111111111 =

5. Special numbers
• •The number 142857 is rather special. When you multiply it the digits found in the
answer stay the same, just in a different order. Check it out:
• 1 x 142857 = 142857
• 2 x 142857 = 285714
• 3 x 142857 = 428571
• 4 x 142857 = 571428
• 5 x 142857 = 714285
• 6 x 142857 = 857142
• What happens when you multiply it by 7? You get another rather special number:
• 7 x 142857 = 999999
• And it doesn't stop there:
• 142 + 857 = 999
• 14 + 28 + 57 = 99
• 142857 x 142857 = 20408122449
• 20408 + 122449 = 142857
• That’s one amazing number!

6. Tricks you can use on your
freinds
• Math Magic/Tricks
• Trick 1: Number below 10
• Step1: Think of a number below 10.
• Step2: Double the number you have
thought.
• Step3: Add 6 with the getting result.
• Step4: Half the answer, that is divide it by
2.
• Step5: Take away the number you have
thought from the answer, that is, subtract

7. • Trick 2: Any Number
More tricks
• Step1: Think of any number.
• Step2: Subtract the number you have thought with 1.
• Step3: Multiply the result with 3.
• Step4: Add 12 with the result.
• Step5: Divide the answer by 3.
• Step6: Add 5 with the answer.
• Step7: Take away the number you have thought from the answer, that is, subtract the answer from the
number you have thought.
• Answer: 8

8. Any Number
• Trick 3: Any Number
• Step1: Think of any number.
• Step2: Multiply the number you have thought with 3.
• Step3: Add 45 with the result.
• Step4: Double the result.
• Step5: Divide the answer by 6.
• Step6: Take away the number you have thought from the answer,
that is, subtract the answer from the number you have thought.
• Answer: 15

9. One more trick
• Trick 4: Same 3 Digit Number
• Step1: Think of any 3 digit number, but each of
the digits must be the same as. Ex: 333, 666.
• Step2: Add up the digits.
• Step3: Divide the 3 digit number with the digits
added up.
• Answer: 37

10. Visit the site again
for
more exciting games
and
activities in your mathematics
experience.