[GPGT]2025 PSLE toughest math question

[Yowe55 mini]

Your answer is the only one I gave a like hor, because got show workings.



In my teacher mode, I become very strict de...

Dear Orphan,

You must note that I have been using calculation in real world application and using real statistical analysis in real world application in my career; I have created processes and solution to enterprise solution and plan.

I am never in a teacher mode, but a real world , financially, engineered and social-technical mode.

Confidence for the future. More good years ahead... Let us take Singapore forward together.
Thank you.

 

[XiaoJinLing]

AB correct.

For the perimeter, you forgot the 2 lines that chopped off the triangle. +8 +3.

Give you half mark for Q2.

Yea i forgot to add... edit liao... thanks..

Not toughest until difficult to solve ... just mayb tricky, like me careless forget to add miss out here n there

 

[PapaWith3Kids]

This not hard lar

 

[Orphan]

Dear Orphan,

You must note that I have been using calculation in real world application and using real statistical analysis in real world application in my career; I have created processes and solution to enterprise solution and plan.

I am never in a teacher mode, but a real world , financially, engineered and social-technical mode.

Confidence for the future. More good years ahead... Let us take Singapore forward together.
Thank you.

You are lucky.

I sometimes have to pitch my processes and solutions to management as if they were 12 year olds...

If not, they think I do black magic...

 

[archie7]

26.
Permeter is 18+26+18+8+(26-3)+26+(26-3)+3=145

Correct bo?

think correct
i use algebra...also get same answer

 

[coolmyth]

This question like machiam like final boss. Although difficulty wise is not secret boss level.

As long as you can infer that, by symmetry, that one side is also 18 cm, the rest is elementary. Just like finding out the boss’ weakness.

 

[Firstclass1188]

This one toughest...?
How much has the standards dropped

Because SG education is rote learning, just use a little brain also cannot, how to innovate?

 

[Yowe55 mini]

You are lucky.

I sometimes have to pitch my processes and solutions to management as if they were 12 year olds...

If not, they think I do black magic...

Dear Orphan,

This is why I was in a senior management role, C suit.

Confidence for the future. More good years ahead... Let us take Singapore forward together.
Thank you.

 

[leaving_footsteps]

26
145


Correct?

 

[orpisia]

Forget it I will fail

 

[grevq80o]

answer is 26cm .. eh... it is not hard leh..

First is to remember equilateral triangle is equal on all sides... then use this property to start process of using these numbers (18cm/41cm/3cm) to further calculate all the possible lengths... then do some matching and comparing ...

 

[Cmonster]

145 cm


10char

 

[1982-1994]

Moi think if I take. This question. I fail.

@MoeLanYong @1982-1994 ..chu cam answer mathematics psle bo?

I'd not only rather answer 95% of $937500, mentally
But also doing 100 of such sums under 15mins

 

[begintoend]

Why do you need algebra when you can jus apply the simple logic of equilateral triangles?

 

[AlchemistJ19]

Once you identify that the 18cm is also at the middle triangle then can solve already

 

[Hyruga]

44 + x = 2(18+x)
X=8

18+8=26

 

[fantasyland]

Its not that difficult? Unless im missing something its just use plus and minus to get the ansnwer. China one way harder than this and its for primary 4 (10th grade).

 

[fantasyland]

This one toughest...?
How much has the standards dropped

Seriously this is easy lol. I saw they test one question for China pri 5 much harder than this. They test the USA college student answer wrong but the China pri 5 student got correct. The question below:

 

[waterlucky]

need to visualise to push the triangle to the left to make the trianagle a whole pcs

 

[obsceneK2]

so easy?

How you get base length equ 41?