Tardis:Sandbox

 

simple #expr check (passes) 1 + 5 =

Just the guts of randomisation check (fails, so it's nothing to do with ) 

{{#expr:(({{#time:U}}+({{{2|{{#time:z}}}}}))
 * 1) time check

NUMBEROFARTICLES check {{#expre:({{NUMBEROFARTICLES:R}})) }}