A p5 math qns
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models are good for certain probsOriginally posted by thoreldan:model is a good way to visualise problem.
pri sch kids might not understand the a,b,c's in algebra
like fractions....
does not mean it can be used in every maths problem -
yah true.Originally posted by WoShiNoobie:Man... your dad is destroying you... But... what did you say to him to get him to complete your work?
actually i told him i dunno how to certain questions then he use algebra teach me...because that time my sis taking algebra i think(either taking algebra or my dad force her to learn)
not complete...some work is..damn repetitive...so i do some..get my dad to help me..
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I got to struggle and use the algebra when my bro teach me and he dunno models...
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Lmfao... Then I think there might only be one or maybe 0 secondary school pupil...Originally posted by thoreldan:Should teach calculus in Pri One
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i thought the above is under simultaneous equation
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This qn very tricky. I forget Ali & Ben Same amount ==> this line i useOriginally posted by FireIce:a + b + j = $1050
a = b
=> a + a + j = $1050
2a + j = $1050
j = $1050 - 2a
j + $50 + $50 = 5(a - $50)
j + $100 = 5a - $250
j = 5a - $350
$1050 - 2a = 5a - $350
7a = $1400
a = $200
b = $200 j = $650
j + $50 + $50 = 5(a - $100)
btw... if I not wrong, now P5 got learn algebra liao right...
I remember my days, I learn algebra in sec 1. -
at least you have ruler now. when i was young, i used pencil box to draw lines most of the time..not because poor, but ruler lent lent...disappear.Originally posted by FadeToBlack:I got to struggle and use the algebra when my bro teach me and he dunno models... -
yah.....p5 or p6.......but the kids are oredi too used to drawing models oredi....tot every maths prob oso use models........takes quite some time for them to accept algebraOriginally posted by xian89:btw... if I not wrong, now P5 got learn algebra liao right...
I remember my days, I learn algebra in sec 1. -
lol I remember last time in primary school for simultaneous equation questions my teacher teach us to "guess" the solution, so Fucking stupid.
I hate all my primary school teachers, waste my time only all of them. and they dont like me too cuz I'm too smart for them, always scold me, got many times even ask me to get out of class. nice lor I dont have to waste my time with them go home play command and conquer -
U all really let me "Da Kai Yan Jie" All got study alot last time? Or can remember what they teach?
I only know ali & ben & jialu got 1050...ali & ben got same amount...
both gv jialu 50 each den jialu got 5 time more then each of them..that's all..hahaha
My maths really jia lat. But i 'm quite sure in real life i wun get stuck in this type of problem..cos is either u own me, i owe you, or i hv to pay wat..lolx. -
3 eqn 3 unknown mah so easy use matlab lor if too lazy to do algebraic manipulation.Originally posted by technoboy:ali, ben and jialu have $1050 altogether
ali and ben have an equal amount of money
if both give jialu $50 each
jialu will have 5 times as much money as each of them
how much does ben and jialu have at 1st?
Anyone can solve them?? I cant get the ans... Lol... -
siao.Originally posted by hisoka:3 eqn 3 unknown mah so easy use matlab lor if too lazy to do algebraic manipulation.
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fi jie,dunnid to sae until so complicated deOriginally posted by FireIce:a + b + j = $1050
a = b
=> a + a + j = $1050
2a + j = $1050
j = $1050 - 2a
j + $50 + $50 = 5(a - $50)
j + $100 = 5a - $250
j = 5a - $350
$1050 - 2a = 5a - $350
7a = $1400
a = $200 b = $200 j = $650 -
hehe sorry was doing a 5 unknown tut so abit siao, but seriously that one not hard in fact can straight away became only 2 unknowns dun even need to use the 3rd unknown, but if use graph i dunno le 15 years ago things cant rememberOriginally posted by the.raven:siao. 