Note: We multiplied our number by 9 and by 12,345,679
4. Age Analysis
Multiply the first number of your age by 5
Add 3 to your new number
Double that figure
Add the second number of your age to that
figure
And the result is
5. Age Analysis
The steps:
Multiply the first number of your age by 5
Add 3 to your new number
Double that figure
Add the second number of your age to that figure
Subtract 6 from that result
And the result is
How it Works
The Trick:
Another arithmetic trick! Numbers are sooo cool!
6. Do You Feel Lucky?
Select a three-digit number
Enter it twice in the calculator (e.g. 123123)
Double that figure
The number is divisible by
The number is divisible by
Do you feel lucky?
The number is divisible by
7. Do You Feel Lucky?
The steps:
Select a three-digit number
Enter it twice in the calculator (e.g. 123123)
Double that figure
The number is divisible by 11
The number is divisible by your original 3-digit number
Do you feel lucky?
The number is divisible by 7 AND 13
And the result is
How it Works The Trick: Entering a three-digit number twice (e.g.
123123) is equivalent to multiplying it by 1001. Since 1001 = 11 x
7 x 13, the six-digit number will be divisible by 7, 11, 13 and the
original three-digit number.
8. Curious Math
Try this and you will be amazed
Follow the rules
And do not cheat
Just do it step-by-step
Here we go
9. Curious Math
Pick a number from 1 to 9
Subtract 5
Multiply by 3
Square the number
(that is multiply the number by itselfNOT square root and yes, you
can square 0. 0 x 0 = 0)
10. Curious Math
Add the digits until you get only one digit
(e.g. 64 = 6 + 4 = 10 = 1+ 0 = 1)
If the number is less than 5, add 5
Otherwise, subtract 4
Multiply by 2
Subtract 6
11. Curious Math
Map the digit to a letter in the alphabet
(e.g. A=1, B=2, C=3, )
Pick a name of a country that begins
with that letter
Take the second letter in the country name,
and think of a mammal that begins with
that letter
Think of the color of that mammal
12. Curious Math
You will be amazed
Are you ready
Here we go
You have a gray elephant from Denmark!
13. Curious Math or at least you probably have a gray elephant
from Denmark. How it Works
The trick:
The first half of this magical problem is another arithmetic
trick. You will (it is certain) map a letter to the number 4 to get
D).
From there we are not certain where you will go, but your
answer is quite probable!
e.g. You could have selected another country that starts with D
such as the Dominican Republic or Dominica or Djiboutibut it is not
probable. You also could have selected another animal that starts
with E such as an elk or an erminebut thats not probable either :
)
14. Math Magic Thank you for attending There are three kinds of
mathematicians -- those who can count and those who can't.
