Mathaddict100's answer to Leow Wen Ze's Primary 5 Maths Whole Numbers Singapore question.
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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..
Date Posted:
5 years ago
From 1+ 4( n-1)
Why (n-1)?
Why (n-1)?
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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