Question 664481
what is 200 less than half of a number
<pre>

To make a quantity become less than it is, 

1. you write the quantity down 

and then 

2. you subtract from it.

We want to make 'half of a number' less than it is, so

1. we write down 'half of a number' which is {{{1/2}}}x.

So we write down

{{{1/2}}}x

2. Then we subtract 200 from it

{{{1/2}}}x - 200
<font size = 1>
[Caution: don't make the mistake of writing {{{cross(200-expr(1/2)x)}}}.
Always begin with what you want to make less (or greater
in some other problems)]
</font>
Edwin</pre>