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primary 5 | Maths | Whole Numbers
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Leow Wen Ze
Leow Wen Ze

primary 5 chevron_right Maths chevron_right Whole Numbers chevron_right Singapore

Hi, how to solve 15c? Thank u

Date Posted: 1 week ago
Views: 13

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Mathaddict100
Mathaddict100's answer
68 answers (A Helpful Person)
1st
By finding out the general term alone,you can find It's figure or square units easily and this works with all qn that has a pattern (n-1)..Hope it helps..
Leow Wen Ze
Leow Wen Ze
1 week ago
From 1+ 4( n-1)
Why (n-1)?
Mathaddict100
Mathaddict100
1 week ago
Hmm..My explanation may not be 100% accurate but I'll try anyways..Why is it n-1? Well,(n-1) is just an expression and when you add it to the first (figure) term,1 in this case,you'll get a formula that represent all figures that is to come after the first figure..This helps to find the value of any figure and beyond..The n is actually the figure..So when you substitute any figure to n,the value of any figure is determined right away...Only add k(n-1) where k is the constant value if there is a constant increase in every figure..For example,increase of 4,multiply 4 with (n-1) and add the first figure's random value as well..Hope I answered your qn..:)
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Mathaddict100
Mathaddict100's answer
68 answers (A Helpful Person)
The normal way to find your nth term formula rather than using a calculator(another shortcut)..Call this magic (or whatever you like)..Hope it helps.. :)
Leow Wen Ze
Leow Wen Ze
3 days ago
Thank you
Mathaddict100
Mathaddict100
3 days ago
Your welcome
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Mathaddict100
Mathaddict100's answer
68 answers (A Helpful Person)
This is an extra note for you...The qn you do is a level 1 qn..Hope this small note here will help you understand better than before..Good luck.. :)
Leow Wen Ze
Leow Wen Ze
3 days ago
Thanks
Leow Wen Ze
Leow Wen Ze
3 days ago
May I know for 2 layer patterns where 2nd row is constant, how do we solve it?
Mathaddict100
Mathaddict100
3 days ago
Ok...I take back my word...Just ignore the 3 layer pattern as it's not tested in Pri or Sec..I don't think I have done the third one before..but in Sec level,you'll be expose to various patterns but more on quadratics..By the way,2 layer pattern is actually quadratic..I'm not sure if 2 layer is tested for you but I do have a shortcut for it..Will send it to you shortly..