Wednesday, 11 February 2015

Study Notes (Lesson 3) Estimation Q1(b)


Score: 1 out of 3

Can we find cube root of 120 without the use of calculator?
Suggest how we can improve on estimating the cube root of 124.864.

2 comments:

  1. in stead of rounding off to 120 round to 125 so that cube rooting 125 will not be as difficult as 120

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  2. we can fine the cube root of 120 without the calculator by using prime factorisation
    we can round 124.864 to 125 instead

    ReplyDelete