Do a google search for the SLIT rule or the SLAT rule. This shows EV combos for shutter speed and aperture and also for the combinations of ISO and light additive values.
APUG BLIND PRINT EXCHANGE
"Wubba, wubba, wubba. Bing, bang, bong. Yuck, yuck, yuck and a fiddle-dee-dee." - The Yeti