Local 68 aptitude

Hey guys. I have my aptitude test coming up for Denver local 68. Can anyone tell me what math I need to study? I downloaded the GAN study guide they suggested, but im also seeing totally different math on other study guides like iprep

From my understanding it’s basic adding, subtracting, multiplying, dividing fractions and decimals. Reducing fractions etc.. let me know. Just feeling a bit confused by all the different study guides