https://padlet.com/u3522230/aqsnq2u42mfs HKU Master of Education Research en-us 2018-03-19 09:57:16 UTC 2025-11-29 06:59:07 UTC hello@padlet.com u3522230 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243402486 Post a text block here with three sentences and your group member names, beginning with 
1. "I see..."
2. "I think..."
3. "I wonder..."]]> 2018-03-19 10:59:15 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243402486 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243848638 73, 10 and 61 

I see that every time we choose a number, the result after the rule sequence always ends up with a multiple of 9.

I think this is because 10a+b-(a+b)=9a where a and b are the respective digits of the number, so every number ends up with a multiple of 9.

I wonder why we're doing this again.

]]> 2018-03-20 06:13:34 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243848638 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243848668 We tested this on a variety of numbers, for example, 46, 12, 39, 54, 33, 67, and so on.


We see that if we take xy (separate digits) as the original number,  xy-x+y= a multiple of 9.

We think that this is because since every time this equation is calculated, the known result will be a multiple of 9. For every multiple of 9, they will all hold the same graphic/icon every time it is refreshed. 

We wonder if there are any other equations that will end up with a similar result, eg a multiple of 8, or a multiple of 7 etc.

]]> 2018-03-20 06:13:45 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243848668 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243848958 We tried the number 36, 45, 22 etc.. We see that all the numbers that we tried ended up with a answer that is included in the multiples of 9. 

We think that all the multiples of 9, including the answer when you press read my mind have the same images on them and that is why they can always " read our minds".


]]> 2018-03-20 06:16:17 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243848958 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243848971
We tried difficult numbers like 74 which obviously, ended in a multiple of 9 which gave us the  image that was on the number. 

Because the mathematical formula is 10a + b which is you adding the two two digit numbers together then you minus a+b which is you removing the number which you got from 10a+b and your original number. The awnser is 9a which means that it dosen't matter what two digit number it is, it will always end with an multiple of 9

We are wondering about why we are doing this for a second time and what this has to do with math


]]> 2018-03-20 06:16:24 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243848971 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849001 We tried the number 10 first, and 10-1=9. 

We see every multiple of 9 is the same symbol, and no matter what number you choose, you will still end up with the symbol that the multiples of 9 happens to be. The formula is that (10x+y)-(x+y)=9x, where x is the digit in the tens column, and y is the digit in the ones column.


]]> 2018-03-20 06:16:37 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849001 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849198 We tried the number 72,63, 52
It got us all the "mind reading thing" Because 72 is 9 away from 63 and 63 is 9 way from 52 so it will add up to a multiple of 9.

We see a pattern going on, so basically every number you choose will end up on a multiple of 9 and all the multiple of 9 have a same icon so its a fail safe. Formula: 10x+y ]]> 2018-03-20 06:18:01 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849198 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849230 The rule that we found out was that the answer would always have the same image that are on the multiples of 9. We did the number 69, 21, 34, etc. 
Our rule: 
X= The number in the tens place
Y= The number in the unit place
10x+b-(x+y)=9a]]> 2018-03-20 06:18:21 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849230 chank19 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849239 we see that every time the answer is a multiple of nine 

We think that the answer is on number 81 every time no matter what number you choose 

We wonder why we are doing this task again

]]> 2018-03-20 06:18:27 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849239 leongk11_3 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849275 We realized that nearly all of the numbers are multiples of 9.
We see if we take the first digit and the second digit and we take them away, the answer will always be a multiple of 9.

We think the answer will be the first digit times 9. X*9.
We did the number, 91, 72 and 11

]]> 2018-03-20 06:18:41 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849275 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849294 The numbers we did were 60, 35, 20 and 42.

The results we got were 54, 27, 18 and 36. We realized that all the results were multiples of 9 :)

Thus the image shown in all multiples of 9 will always be the same.]]> 2018-03-20 06:18:50 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243849294 u3522230 https://padlet.com/u3522230/aqsnq2u42mfs/wish/243854878 post your summary there]]> 2018-03-20 07:00:45 UTC https://padlet.com/u3522230/aqsnq2u42mfs/wish/243854878