Tebes wrote:The Know Zone program, Mathematics section, gets it all wrong and the presenters need to go to school first before they mislead children.
sample this,
21-3×2+4÷2=
These idiots are giving the answer as 20.
If I recall my mathematics tisha said that numbers go with the sign before them so in this case
{+21}{-3}*{+4}/{+2}
then apply BODMAS/BEDMAS/PEDMAS:
from the left division comes first
4/2 = 2
so
{+21}{-3}*{+2}
then multiplication
{-3}*+{2}={-6}
so +21-6
=13
if you opt to multiply before dividing(in the rules of mathematics, they can be interchanged)
the solutions is
{+21}
{-3}*{+4}/{+2}
{+21}-12/{+2} then divide
={+21-6}
=13
"There are only two emotions in the market, hope & fear. The problem is you hope when you should fear & fear when you should hope: - Jesse Livermore
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