<p>The word "grid" only exists as a noun and thus when SAT says "grid-in problems etc." it's technically incorrect since "grid" should not be a used as a verb. They made up their own word an will penalize us if we dont know the meaning of say, obstreperous. How ironic....</p>
<p>I’m pretty sure Grid-in is being used as an adjective in that case.</p>
<p>My admissions ticket for the SAT said use parking lot “Off Of” Highway X. Now are idioms really that hard?</p>
<p>^ I’m pretty sure your school put in those instructions, not CB.</p>
<p>I know but being a guy who has flash cards for 40 idioms I got a kick out of it.</p>