Vincy Chan
Asked 9 years ago

SG chevron_right Primary 3 chevron_right Number and Algebra

p3 maths ... may i know y the correction (in green writing bottom) the equation is like tat ? y need 51 + 3 = 54 (but there said total is 51 only) ? & y need to รท 2 ? thank you very much

Replies 18

Vincy Chan

this is wat my method way to teach my boy ... m i correct ? thank you =)

6 years ago
Chong Ji Lian

Yup correct

6 years ago
Vincy Chan

tks ji lian .... but do u understand teacher's way ? can u explain to me if u understand ... thank you very much ๐Ÿ˜Š

6 years ago
Chong Ji Lian

Haha I also don't understand. But that correction can't be using model method to do. I just can't see it. Maybe it's another way of doing.

6 years ago
Vincy Chan

thank you very much !!! cos just thinking the question said is 51 altogether, but if 51 + 3 first then becomes 54, so is not match w/the question wat they said only '51' ... then i dun understand wat means by รท 2, 2 is means wat for ? unit ? or person ? or ... so i really dun understand ๐Ÿ˜…๐Ÿ˜…

6 years ago
Karen Goh

51+3 =54 is to make all unit equal just like 51-15=36 it is also another way to make the unit equal.

6 years ago
Vincy Chan

tks karen ๐Ÿ˜„

6 years ago
Karen Goh

51-15=36 is a slightly longer method which the child might have a higher chance of making careless mistake

6 years ago
Tey Pei Ling

6 years ago
Vincy Chan

thank you pei ling ๐Ÿ˜Š ur explanation very clear but i still dun understand if need to add 3 then the total is 54 not 51 already lor ?

6 years ago
Tey Pei Ling

The total didn't change. U add 3 so that all the units have the same value for easy calculation. C = 1 unit - 3 5 units + (1 unit -3)= 51 6 units = 51+3 = 54

6 years ago
KL Gan

51+3 = 54 is to make the number of loom bands cindy have the same as bella, thus giving u a total of 6 units, ie Adeline 4 units, bella 1 unit and cindy 1 unit. Since total units is 6 units (4+1+1), and adeline has 3 more units than bella, thus we use 54/2 to get the difference. Hope this help u to understand better

6 years ago
Vincy Chan

thank you gan kl ๐Ÿ˜Š

6 years ago
Caleb Tey

6 years ago
Vincy Chan

thank you caleb ๐Ÿ˜Š im using ur equation also (almost same)

6 years ago
Vincy Chan

thank you cheng liew ๐Ÿ˜Š

6 years ago
Ching Lee

51+3=54. Bella (3 parts) + Adeline (1 part) . Bella has Two parts more than Adeline . Hence 54/2

6 years ago
Vincy Chan

tks ching lee =)

6 years ago
Chong Ji Lian

Yup correct

6 years ago
Vincy Chan

tks ji lian .... but do u understand teacher's way ? can u explain to me if u understand ... thank you very much ๐Ÿ˜Š

6 years ago
Chong Ji Lian

Haha I also don't understand. But that correction can't be using model method to do. I just can't see it. Maybe it's another way of doing.

6 years ago
Vincy Chan

thank you very much !!! cos just thinking the question said is 51 altogether, but if 51 + 3 first then becomes 54, so is not match w/the question wat they said only '51' ... then i dun understand wat means by รท 2, 2 is means wat for ? unit ? or person ? or ... so i really dun understand ๐Ÿ˜…๐Ÿ˜…

6 years ago
Vincy Chan

thank you pei ling ๐Ÿ˜Š ur explanation very clear but i still dun understand if need to add 3 then the total is 54 not 51 already lor ?

6 years ago
Tey Pei Ling

The total didn't change. U add 3 so that all the units have the same value for easy calculation. C = 1 unit - 3 5 units + (1 unit -3)= 51 6 units = 51+3 = 54

6 years ago
Karen Goh

51+3 =54 is to make all unit equal just like 51-15=36 it is also another way to make the unit equal.

6 years ago
Vincy Chan

tks karen ๐Ÿ˜„

6 years ago
Karen Goh

51-15=36 is a slightly longer method which the child might have a higher chance of making careless mistake

6 years ago
Vincy Chan

tks ching lee =)

6 years ago

Palu Bamjan
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Fractions

Please help

Replies 3

Sheeba Navas

6 years ago
Pamela Gordon

6 years ago
Palu Bamjan

Thank u so much

6 years ago

Adrian Ng
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Replies 5

Yvonne Wong

Sorry, may I know what is C3 & C4 means?

6 years ago
Adrian Ng

I named it C3 for easy reference. C3 is actually taking C2 x 1.5

6 years ago
Yvonne Wong

Sorry, what is 1377 & 895 each represent?

6 years ago
Adrian Ng

1.5u + 3p = 1377 people

6 years ago
Yvonne Wong

Thank you!

6 years ago

Adrian Ng
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Making it visual...

Replies 0

Ngo Lilian
Asked 9 years ago

SG chevron_right Primary 4 chevron_right Measurement

Need help P3

Replies 5

Yeo See Yeong

6 years ago
Ngo Lilian

Thank u

6 years ago
Shirley Woon

For P3, this is perhaps the easier way to understand.

6 years ago
Shaoyang Brandon

This question often appears to identify if students can relate the perimeter of a figure to the perimeter of a square. Usually, many students only think of perimeter as length surrounding a figure but few see that they can relate the perimeter of a figure to the perimeter of a square. This is a question worth practicing over. It is about relating as much as possible the perimeter of a figure to the perimeter of a square.

6 years ago
Adabel Tang

(3).because 6-2=4 2+3=5 2+4+3+2+5+6=22

6 years ago