Stella Lee
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Fractions

Hi, P5 qn, pls help, TIA

Replies 2

Raymond Ng

6 years ago
Stella Lee

Thks

6 years ago

Rachel Lee
Asked 9 years ago

SG chevron_right chevron_right

Hi all..is there any fun way in learning multiplication..rather than pure memorising? Thanks in advance..😀

Replies 18

Kai Meng

Hi, you may Google for "japanese multiplication trick lines" to explore. Have fun!

6 years ago
Kai Meng

Additionally, use daily life events to get your child to practice the multiplication.

6 years ago
Sherri Spira Adler

Following

6 years ago
Thidar Ohitorisama

Try the counting fingure method for multiplication of 9 https://www.google.com.sg/search?ie=UTF-8&client=ms-android-samsung&source=android-browser&q=9+multiplication+table&gfe_rd=cr&ei=75JzVtGUDunJ8AfR4b_QBA#q=9+multiplication+finger+trick&imgrc=dLAfb1hds3mB-M%3A

6 years ago
Rachel Lee

Thks for e replies..Is there a method tats applicable to all ..besides the jap line mtd..e counting finger for mutiply of 9 is gd but its only applicable to 9

6 years ago
Daniel Loh

I'm not too sure whether it is fun or not, but learning that it is actually 'how many groups of something' helps. That's the foundation. Then introduce skip counting of 10, 5 and 2s in that order. It's quite fun for my son and he can skip count 10s and 5s to 100. And counts in 2s to 20. He's 4.5 years old and essentially he has learnt the 2, 5 and 10 multiplication table. Hope this helps.

6 years ago
Yvonne Lai

Interested to learn too

6 years ago
Audrey Chong

Try doing via songs. For example, u can sing 4 times table to the tune of row, row, row your boat. I do that with my children.

6 years ago
Rachel Lee

Hi Daniel..i believe e 2..5..n 10 time table r easier..they done it in kindergarten..my challenge will n e rest of it

6 years ago
Daniel Loh

Ok. But There's some reason for that order. Anyway, for the rest is not important .. ;)

6 years ago
Daniel Loh

Why not try deriving all the rest of the times table from 2s, 5s and 10s? It will be a fun exercise! And guarantee to build a strong foundation.

6 years ago
Kai Meng

Ultimately, it's how frequent one makes sense of these multiplications, regardless of the methods.

6 years ago
Jason Oon

https://youtu.be/igoGDE5hLjw

6 years ago
Rachel Lee

Hi Jason Oon..thks for sharing on e multiplication songs.. It makes learning more fun..

6 years ago
Jason Oon

My pleasure. Another good way is to make the kids write out the product of the numbers on a table like this. This way they can relate the values and think of ways to remember them easily.

6 years ago
Christine Lenghaus

The only times tables any student needs to "remember" are 2s and 10s the rest are all based on those eg 3s are 2 groups + 1 group, 4s are double double etc check out: http://www.mathsheroes.com.au/2015/12/twos-and-tens/

6 years ago
Daniel Loh

Fully agree, Christine! Though I'll add the 5s coz it's easy to remember. Did this with a student last week after she forgot 9x6. I just set the question and she did the rest, no 'memorizing' ..

6 years ago
Christine Lenghaus

Daniel Loh Thanks Daniel, I have thought about the fives -most kids actually know these so don't actually have to learn them as extra, but knowing it's half of ten is handy when you do something like 43 x 5 and can think 430 (10 x 43) and then halve it to get 215. :)

6 years ago
Daniel Loh

I'm not too sure whether it is fun or not, but learning that it is actually 'how many groups of something' helps. That's the foundation. Then introduce skip counting of 10, 5 and 2s in that order. It's quite fun for my son and he can skip count 10s and 5s to 100. And counts in 2s to 20. He's 4.5 years old and essentially he has learnt the 2, 5 and 10 multiplication table. Hope this helps.

6 years ago
Daniel Loh

Ok. But There's some reason for that order. Anyway, for the rest is not important .. ;)

6 years ago
Daniel Loh

Why not try deriving all the rest of the times table from 2s, 5s and 10s? It will be a fun exercise! And guarantee to build a strong foundation.

6 years ago
Daniel Loh

Fully agree, Christine! Though I'll add the 5s coz it's easy to remember. Did this with a student last week after she forgot 9x6. I just set the question and she did the rest, no 'memorizing' ..

6 years ago
Christine Lenghaus

Daniel Loh Thanks Daniel, I have thought about the fives -most kids actually know these so don't actually have to learn them as extra, but knowing it's half of ten is handy when you do something like 43 x 5 and can think 430 (10 x 43) and then halve it to get 215. :)

6 years ago

Kong Sing Yee
Asked 9 years ago

SG chevron_right chevron_right

I am a 3-digit number. The value of the digit in the tens place is 15 more than the value of the digit in ones place. The sum of all my digits is 10. What number am I? Anyone can help to show the working?

Replies 2

Kathleen Tan

The value of the digit in the tens place must be a multiple of 10. It is 15 more than the value in the ones place, so it must be 2 (20) since the value of the number in the ones place is less than 10. The value in the ones place is 20-15=5. Since the sum of digits is 10, the digit in the hundreds place must be 10-5-2=3. Therefore the number is 325.

6 years ago
Kong Sing Yee

Thanks Kathleen, .... Think it is quite complicated to explain to a pri 1 boy..@@

6 years ago

Feiny Chen
Asked 9 years ago

SG chevron_right chevron_right

Help pls ! Thanks

Replies 10

Raymond Ng

6 years ago
Feiny Chen

Hi Raymond, may I ask,how did you get the 30 in Shernice? And why?

6 years ago
Raymond Ng

Lost $50, then gained $20... so she lost $30 compared to beginning

6 years ago
Feiny Chen

Thanks Raymond ! One more question pls (no.7) ! TQvm

6 years ago
Raymond Ng

Constant total problem

6 years ago
Feiny Chen

Emm...may I know why do u change the numerator?

6 years ago
Raymond Ng

Constant sum problem. To equate 3u (before) & 5u (after) the same. LCM of 3 & 5 is 15. So before ×5, after ×3

6 years ago
Feiny Chen

Ok,thanks!

6 years ago
Shaoyang Brandon

Hi! Refer to the 2 images below for the explanation. :)

6 years ago
Shaoyang Brandon

6 years ago
Raymond Ng

Lost $50, then gained $20... so she lost $30 compared to beginning

6 years ago
Feiny Chen

Thanks Raymond ! One more question pls (no.7) ! TQvm

6 years ago
Raymond Ng

Constant total problem

6 years ago
Feiny Chen

Emm...may I know why do u change the numerator?

6 years ago
Raymond Ng

Constant sum problem. To equate 3u (before) & 5u (after) the same. LCM of 3 & 5 is 15. So before ×5, after ×3

6 years ago
Feiny Chen

Ok,thanks!

6 years ago

Renny Floria Jaffery
Asked 9 years ago

SG chevron_right chevron_right

Thank you 😊

Replies 0