Maths is Fun ( MERGED with Cherry's)

Hi..just try this maths games..and u'll be surprise..

1. What are the first 3 digits of u'r phone number? ( do NOT include the area code)
2. Multiply by 80
3. Add 1
4. Multiply by 250
5. Add in the last four digits of phone number.
6. Add in the last four digits of phone number again.
7. Substract 250
8. Divide by 2.

What is u'r answer??..have a try..explanation later..kay..
if u have any maths puzzles to be solved..do share the fun..
..cheerio..

[ Last edited by mbhcsf on 29-6-2005 at 01:40 AM ]

Dapat no HP aku lah..  hmmmm..  menarik..

DewaGanaZ

hehehe.....misteri sains

atomenjery

amazing... those yg  very smart in math jer yg boleh create math puzzles like this...

QueenLove

Originally posted by atomenjery at 19-2-2004 11:59 AM:
amazing... those yg  very smart in math jer yg boleh create math puzzles like this...

tak semestinya yg smart in math je boleh create...
yg biasa pun boleh create gak.. cuma harus tau je camne...

lorenabobbit

maleh nak kira......

Muntz

aku pun..

amorist

let the phone number be abcdefg
This is equal to 1000000a + 100000b + 10000c + 1000d + 100e + 10f + g

1. What are the first 3 digits of u'r phone number? ( do NOT include the area code)
100a +10b + c

2. Multiply by 80
80(100a+10b+c)

3. Add 1
80(100a+10b+c) + 1

4. Multiply by 250
250*80(100a+10b+c) + 250

5. Add in the last four digits of phone number
250*80(100a+10b+c) + 250 +1000d +100e + 10f + g

6. Add in the last four digits of phone number again
250*80(100a+10b+c) + 250 +2000d +200e + 20f + 2g

7. Substract 250
250*80(100a+10b+c) + 2000d +200e + 20f + 2g

8. Divide by 2
250*40(100a+10b+c) + 1000d +100e + 10f + g
=1000000a + 100000b +10000c + 1000d + 100e +10d + g, our original phone number.

DewaGanaZ

Originally posted by amorist at 20-2-2004 08:27 AM:
let the phone number be abcdefg
This is equal to 1000000a + 100000b + 10000c + 1000d + 100e + 10f + g

1. What are the first 3 digits of u'r phone number? ( do NOT include the area code)
100a + ...

HEHEHEHE,,,,
PENJELASAN SAINTIFIKNYA....

Gosh..bro amorist..that's cool..tak yahlah cherry bagi explanation lagi..
..malas nak kira??..guna calculator lah..heheh..
la ni maths and science in english..one of the techniques that my aunt gives to her student..to arouse their interest..they really enjoy the maths class..

another one from me..just for fun..

1. Write down the number of the month you were born.
2. Multiply it by 4.
3. Add 13
4. Multiply the result by 25
5. Substract 200
6. Add the day of the month on which you were born
7. Multiply by 2
8. Substract 40
9. Multiply the result by 50
10. Add the last two digits of the year of your birth.
11. Finally, substract 10,500.

Explanation later..kay..have a try..

[ Last edited by cherry on 22-2-2004 at 11:09 PM ]

Originally posted by amorist at 20-2-2004 08:27 AM:
let the phone number be abcdefg
This is equal to 1000000a + 100000b + 10000c + 1000d + 100e + 10f + g

1. What are the first 3 digits of u'r phone number? ( do NOT include the area code)
100a + ...

ooo.... paham dah....  banyak misteri matematik rupanya ya... aku pun tak tau... heheh

[quote]Originally posted by [i]cherry[/i] at 20-2-2004 11:02 AM:
another one from me..just for fun..

1. Write down the number of the month you were born.
2. Multiply it by 4.
3. Add 13
4. Multiply the result by 25
5. Substract 200
6. Add the day of the m ... [/quote]

Ini pun best gak.... macam mana dia dapat nie???

awoks

Originally posted by cherry at 20-2-2004 11:02 AM:
another one from me..just for fun..

1. Write down the number of the month you were born.
2. Multiply it by 4.
3. Add 13
4. Multiply the result by 25
5. Substract 200
6. Add the day of the m ...

wahhh..dpt laa..besday aku...ekekee..besh besh

seribulan

erk...I hate Math..
I hate numbers..
I hate sums...

ps..though I was a
science student...
eheeheheh....

mbhcsf

Originally posted by seribulan at 2004-2-22 16:31:
erk...I hate Math..
I hate numbers..
I hate sums...

ps..though I was a
science student...
eheeheheh....

it's a matter of having a GOOD MATHs teacher with the right " touch" kan, DEAR???...hmm..samalah dgn physics..:bg:

All these just copy and paste..lor..not that genius..since this is one of my worst subject..but still i love maths..and hate chemistry..though m' pure science students..

This will take a calculator, but it will be worth it! You can impress your friends and family by correctly guessing the amount of change they have in their pockets!

1. Ask the person to take his/her age and multiply it by 2.   
2. Add 5.   
3. Multiply this sum by 50.   
4. Subtract 365.   
5. Add the amount of loose pocket change, but do NOT count  change   totalling RM 1 or over (i.e., must be less than RM 1)   
6. Add 115 -- final outcome:
   
Notice that the first two digits will be the person's age,
and the last two digits are the amount of the person's pocket change.
It does work but make sure the loose change less than RM 1..
juz for fun..ajeee....

[ Last edited by cherry on 22-2-2004 at 11:01 PM ]

soo..to all teachers out there..you all DO play an important role in making the subject interesting and for the students to like the subject...good luck..guyss..hehehe

amorist

Originally posted by seribulan at 2004-2-22 04:31 PM:
erk...I hate Math..
I hate numbers..
I hate sums...

Maths is so simple lah bulan. Let me show you some examples:

Kalau nak cari ganda dua number ending with 5, such as 65, 75, etc:

Take 65 x 65 lah:

Last 2 digits will always be 25. First 2 digits - take the first digit, multiply by that first digit + 1

So kalau 65, then first 2 digits would be 6x7 = 42. Last 2 digits alway 25.
So we get 4225

Kalau 75, then 7x8=56. Last 2 digits always 25. So we get 5625

Kalau 85, then 8x9=72, so answer is 7225

Kalau 95, then 9x10=90, so we get 9025

Senang, kan?

Second example: 5x ganda dua:

The last 2 digits will always be x ganda dua. The first 2 digits will be 25 + x

Contoh: 53 ganda dua. Last 2 digits is 3x3 = 09
First 2 digits is 25 + 3 = 28.
So we get 2809

Kalau 57, then last 2 digits will be 7x7=49
First 2 digits will be 25 + 7 = 32
So we get 3249

Ha... siapa kata Maths susah?

seribulan

Originally posted by amorist at 22/2/04 11:23 PM:
Maths is so simple lah bulan. Let me show you some examples:

Kalau nak cari ganda dua number ending with 5, such as 65, 75, etc:

Take 65 x 65 lah:

Last 2 digits will always be 25. First 2  ...

:eek::eek::eek:
tulong .........
panadol:re::re: